subject:( Nonlinear crystal)

NSYSU

1. Hsu, Ming-chun. Polarization-independent nonlinear effect of dye doped cholesteric liquid crystals.

Degree: Master, Electro-Optical Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0801112-155959

► In this thesis, the nonlinear properties of dye-doped liquid crystal films measured via Z-scan technique are presented, and weâve also compared the features of nonlinear… (more)

▼ In this thesis, the nonlinear properties of dye-doped liquid crystal films measured via Z-scan technique are presented, and weâve also compared the features of nonlinear effect between nematic and cholesteric liquid crystals, because the purpose was to obtain a strong nonlinear effect which is polarization independent. The nonlinear refraction of the samples would induce self-focusing/self-defocusing effect, therefore the Z-scan technique was utilized for the measurements in this study. The degrees of self-focusing/self-defocusing effect can be used to calculate the optical Kerr constants n2 related to the variation of refractive indices. Moreover, this technique is uncomplicated and powerful for nonlinear effect observations, because it only requires a single laser beam and a simple setup to measure both nonlinear refractive indices and nonlinear absorption coefficients. In the first section of the study, we had investigated the nonlinear effect of azo-dye-doped liquid crystal (ADDLC) films by Z-scan technique. Owing to the birefringence provided by homogeneous-alignment liquid crystal films and the absorption difference between the long axis and the short axis of the azo dye, the self-defocusing effect in nematic phase was larger than that in isotropic state as the polarization of incident light was parallel to the long axis of aligned liquid crystals. While we set the incident polarization perpendicular to the long axis of liquid crystals, a self-focusing effect was observed and the in nematic phase was found smaller than that in isotropic state. As a result, it can be analyzed that the nonlinear effect of homogeneous aligned ADDLC films is intensely polarization-dependent. In the second section, in order to acquire a polarization-independent nonlinear effect, we fabricated the azo-dye-doped cholesteric liquid crystal (ADDCLC) films which were arranged in planar texture with the reflection bands managed to avoid the III wavelength of incident light. We had studied the nonlinear effects in different concentrations of the azo dye and also measured the influence of incident polarizations. We discover that when the concentration of dyes was raised, the n2 increased as well; the nonlinear indices were almost the same in various polarized light. The incident light suffered an average refractive index in an ADDCLC film, and azo dye arranged in helices resulted in identical absorption to different polarized light. In summary, employing ADDCLCs with planar texture in nonlinear optical applications, we could achieve not only strong nonlinear effects but also high polarization independence in liquid crystals. Advisors/Committee Members: Ying-Guey Fuh (chair), Shie-Chang Jeng (chair), Wen-Jun Zheng (chair), Wei Lee (chair), Tsung-Hsien Lin (committee member).

Subjects/Keywords: cholesteric liquid crystal; liquid crystal; nonlinear; Z-scan

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APA (6^th Edition):

Hsu, M. (2012). Polarization-independent nonlinear effect of dye doped cholesteric liquid crystals. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0801112-155959

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hsu, Ming-chun. “Polarization-independent nonlinear effect of dye doped cholesteric liquid crystals.” 2012. Thesis, NSYSU. Accessed January 20, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0801112-155959.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hsu, Ming-chun. “Polarization-independent nonlinear effect of dye doped cholesteric liquid crystals.” 2012. Web. 20 Jan 2021.

Vancouver:

Hsu M. Polarization-independent nonlinear effect of dye doped cholesteric liquid crystals. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Jan 20]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0801112-155959.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hsu M. Polarization-independent nonlinear effect of dye doped cholesteric liquid crystals. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0801112-155959

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Anna University

2. Senthilkumar M. Crystal growth and characterization OF La2CaB10O19 NdxLa2 xCaB10O19AND K2B4O11H8 for NLO and laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal;.

Degree: Laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal, 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/11104

►

Fifty years ago, in 1960, Maiman created the first source of coherent radiation, namely a ruby laser generating in the red spectral region. Several years… (more)

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Fifty years ago, in 1960, Maiman created the first source of coherent radiation, namely a ruby laser generating in the red spectral region. Several years later a great family of lasers was in existence. The recent research activities focus mainly on materials exhibiting excellent second order nonlinear optical properties because of their potential applications in optoelectronic technologies, telecommunication, optical data storage, medical diagnostics, entertainment and optical signal processing. The present thesis consists of six chapters. A brief introduction and overview of non-linear optical borate single crystals employed in NLO applications is presented. The structure of the available borate materials, the research work reported in the literature for borate based single crystals and the applications of borate single crystals in the field of nonlinear optics are discussed in detail. A short introduction to the crystal growth techniques involved in the present investigations is also given. The theoretical analysis of nonlinear optical properties of LCB crystal was carried out. The synthesis and growth of lanthanum calcium borate single crystals was carried out. NdLCB (Nd with 1 and 5 mole %) polycrystalline materials was synthesized and confirmed by powder X-ray diffraction analysis. The growth of potassium tetraborate tetrahydrate (K2B4O11H8) single crystals was carried out using low temperature solution growth method by solvent evaporation at room temperature. UV studies reports that the crystal is more than 60% transparent in the UV and visible region. Etch pattern reveals that the grown crystals follows step growth pattern. The powder SHG test displays a green emission from K2B4O11H8 when Nd:YAG laser of 1064nm is passed and the crystal efficiently converts the IR pump wavelength to visible region. Hence this crystal can be useful in the frequency doubling applications and for other non-linear optical processes. The summary of the present investigations and the suggestions for future works are also discus

None

Advisors/Committee Members: Dhanasekaran,R..

Subjects/Keywords: Crystal growth; laser applications; nonlinear optical property; theoretical analysis; LCB crystal; x-ray diffraction

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APA (6^th Edition):

M, S. (2013). Crystal growth and characterization OF La2CaB10O19 NdxLa2 xCaB10O19AND K2B4O11H8 for NLO and laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/11104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

M, Senthilkumar. “Crystal growth and characterization OF La2CaB10O19 NdxLa2 xCaB10O19AND K2B4O11H8 for NLO and laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal;.” 2013. Thesis, Anna University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/11104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

M, Senthilkumar. “Crystal growth and characterization OF La2CaB10O19 NdxLa2 xCaB10O19AND K2B4O11H8 for NLO and laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal;.” 2013. Web. 20 Jan 2021.

Vancouver:

M S. Crystal growth and characterization OF La2CaB10O19 NdxLa2 xCaB10O19AND K2B4O11H8 for NLO and laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal;. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

M S. Crystal growth and characterization OF La2CaB10O19 NdxLa2 xCaB10O19AND K2B4O11H8 for NLO and laser applications and theoretical analysis of nonlinear optical property of La2CaB10O19 crystal;. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Anna University

3. Suthan T. Growth and characterization of organic single crystals by modified vertical bridgman technique;.

Degree: 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/11500

►

Crystal growth involves a variety of research fields ranging from surface physics, crystallography and material science to condense matter physics. In the recent years, the… (more)

Subjects/Keywords: Crystal Growth; Organic single crystal; Bridgman technique; benzyl single crystal; nanotranslation; e-hydroxybenzaldehyde (3HBA); nonlinear optical; laser materials; scintillator

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APA (6^th Edition):

T, S. (2013). Growth and characterization of organic single crystals by modified vertical bridgman technique;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/11500

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

T, Suthan. “Growth and characterization of organic single crystals by modified vertical bridgman technique;.” 2013. Thesis, Anna University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/11500.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

T, Suthan. “Growth and characterization of organic single crystals by modified vertical bridgman technique;.” 2013. Web. 20 Jan 2021.

Vancouver:

T S. Growth and characterization of organic single crystals by modified vertical bridgman technique;. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11500.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

T S. Growth and characterization of organic single crystals by modified vertical bridgman technique;. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/11500

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

4. Wang, Cheng-hao. The Ultrafast Time-resolved Photoluminescence Study of Si doped InN thin films.

Degree: Master, Physics, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-203946

► This thesis doing time resolved photoluminescence to study lifetime of Indium Nitride(InN) and Silicon doping Indium Nitride(Si:InN) in different temperature by using upconversion. We compare… (more)

Subjects/Keywords: nonlinear crystal; time-resolved photoluminesce; InN; decay time; Auger recombination rate

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APA (6^th Edition):

Wang, C. (2013). The Ultrafast Time-resolved Photoluminescence Study of Si doped InN thin films. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-203946

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Cheng-hao. “The Ultrafast Time-resolved Photoluminescence Study of Si doped InN thin films.” 2013. Thesis, NSYSU. Accessed January 20, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-203946.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Cheng-hao. “The Ultrafast Time-resolved Photoluminescence Study of Si doped InN thin films.” 2013. Web. 20 Jan 2021.

Vancouver:

Wang C. The Ultrafast Time-resolved Photoluminescence Study of Si doped InN thin films. [Internet] [Thesis]. NSYSU; 2013. [cited 2021 Jan 20]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-203946.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang C. The Ultrafast Time-resolved Photoluminescence Study of Si doped InN thin films. [Thesis]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0812113-203946

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

5. Li, Ming-Hong. The Study of Nonlinear Optical Properties of Diacrylate Using Z-SCAN Technique.

Degree: Master, Electro-Optical Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702112-172855

► Polymer liquid crystal possesses advantages of polymer in chemical industry and liquid crystal in display industry,so it is attracted more attention in science and technology.… (more)

Subjects/Keywords: Z-SCAN; polymer liquid crystal; diacrylate; holographic light field; nonlinear optics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Li, M. (2012). The Study of Nonlinear Optical Properties of Diacrylate Using Z-SCAN Technique. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702112-172855

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Li, Ming-Hong. “The Study of Nonlinear Optical Properties of Diacrylate Using Z-SCAN Technique.” 2012. Thesis, NSYSU. Accessed January 20, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702112-172855.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Li, Ming-Hong. “The Study of Nonlinear Optical Properties of Diacrylate Using Z-SCAN Technique.” 2012. Web. 20 Jan 2021.

Vancouver:

Li M. The Study of Nonlinear Optical Properties of Diacrylate Using Z-SCAN Technique. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Jan 20]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702112-172855.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Li M. The Study of Nonlinear Optical Properties of Diacrylate Using Z-SCAN Technique. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0702112-172855

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Rochester

6. Shi, Zhimin (1979 - ). Fundamentals and applications of slow light.

Degree: PhD, 2011, University of Rochester

URL: http://hdl.handle.net/1802/14179

► "Slow and fast light" constitute a broad class of science and technology that can dramatically change the group index of a medium over a certain… (more)

▼ "Slow and fast light" constitute a broad class of science and technology that can dramatically change the group index of a medium over a certain wavelength range. This thesis is composed of studies regarding both fundamental aspects and applications of slow light. The thesis starts with some discussion on two fundamental questions. The first one is how much momentum a photon carries within a slow-light medium, and what kind of force is experienced by a slow-light medium when a photon enters or leaves it. The second issue is how the noise properties of an optical field change as it propagates through a slow-light medium. The second part of the thesis deals with the applications of slow light for tunable time delays. For such applications, one of the key figures of merit is the maximum fractional delay that a slow-light element can achieve. I first present a method with experimental demonstrations for improving the maximum fractional delay using a multiple-gain-line medium. Second, I present a design with experimental demonstration for how to achieve simultaneous tunable delay and advancement using slow and fast light in a single module. I then propose a design of a digitally tunable module using channelized slow light, which can be useful for optical packet delays, etc. The third part of the thesis studies the use of slow light to enhance the performance of spectroscopic interferometers. I start with the derivation of the spectral sensitivity of two-beam and multiple-beam interferometers with slow-light media incorporated in them. I show both theoretically and experimentally that the spectral sensitivity is proportional to the group index of the medium inside the interferometers. Second, I propose and demonstrate experimentally a new type of Fourier-transform interferometer using tunable slow light. I then analyze the performance of three types of slow-light media for interferometry applications. Lastly, I present a design of an on-chip slow-light spectrometer as well as some studies on slow-light waveguides using photonic crystal structures.

Subjects/Keywords: Slow light; Nonlinear optics; Stimulated Brillouin scattering; Photonic crystal; Interferometry

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APA (6^th Edition):

Shi, Z. (. -. ). (2011). Fundamentals and applications of slow light. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/14179

Chicago Manual of Style (16^th Edition):

Shi, Zhimin (1979 - ). “Fundamentals and applications of slow light.” 2011. Doctoral Dissertation, University of Rochester. Accessed January 20, 2021. http://hdl.handle.net/1802/14179.

MLA Handbook (7^th Edition):

Shi, Zhimin (1979 - ). “Fundamentals and applications of slow light.” 2011. Web. 20 Jan 2021.

Vancouver:

Shi Z(-). Fundamentals and applications of slow light. [Internet] [Doctoral dissertation]. University of Rochester; 2011. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1802/14179.

Council of Science Editors:

Shi Z(-). Fundamentals and applications of slow light. [Doctoral Dissertation]. University of Rochester; 2011. Available from: http://hdl.handle.net/1802/14179

Anna University

7. Pabitha, G. Crystal growth and characterisation of thiocyanate and thiourea ligands based transition metal zn hg cd mn complexes for nonlinear optical applications; -.

Degree: Crystal Growth, 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/24759

►

In the fast growing modern technology, the field of nonlinear optics newlinehas dominated the application area such as optical information processing newlinetelecommunications sensors optical phase… (more)

▼

In the fast growing modern technology, the field of nonlinear optics newlinehas dominated the application area such as optical information processing newlinetelecommunications sensors optical phase conjugation image processing newlineoptical switching optical data processing and frequency generation newlineNonlinear optics field can explore extending its fruits with the help of good newlinequality single crystals Thus growing good quality crystals of highly efficient newlinematerials is a challenge that has been placed before the young researcher newlineMany semi organic materials combining metals with organic ligands have newlinebeen explored to be highly efficient nonlinear material newlineThe present thesis deals with the growth and characterisation of newlinesome metal organic complexes combining metals like Zn Cd Hg and Mn newlinewith some organic ligands like thiocyanate thiourea Nmethyl formamide newlineand thiosemicarbazide The thesis starts with a brief overview on the theory newlinebehind non linear optics the various types of nonlinear optical crystals newlinevarious crystal growth techniques and the fundamentals of various newlinecharacterisation techniques used to study the properties of the grown crystals newlineA detailed investigation on the growth and characterisation of newlinetetrathiourea mercury tetra thiocyanato manganate TMTM single crystal has newlinebeen discussed in the second chapter TMTM was grown by solvent newlineevaporation method The complex was found to crystallise in tetragonal newlinegeometry with the non centrosymmetric space group I4 The grown single newlinecrystal of TMTM shows 69 transparency over the entire range of visible newlineregion with a cutoff wavelength of 362 nm The SHG efficiency of TMTM newlinewas found to be 10 times that of KDP crystal The complex exhibits good newlinethermal stability up to 205 C Etching studies showed a layer growth pattern newlineThe thermal and mechanical properties of the TMTM are also presented Chapter 3 deals with the growth and characterisation of newlinetetrathiourea cadmium tetrathiocyanato zincate TCTZ The single crystal of newlinethe complex was grown using solvent evaporation method using 3 1 wateracetone newlinesolvent

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Advisors/Committee Members: Dhanasekaran, R.

Subjects/Keywords: Crystal Growth; Ligands; Nonlinear Optical Applications; Thiocyanate; Thiourea

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APA (6^th Edition):

Pabitha, G. (2013). Crystal growth and characterisation of thiocyanate and thiourea ligands based transition metal zn hg cd mn complexes for nonlinear optical applications; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/24759

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pabitha, G. “Crystal growth and characterisation of thiocyanate and thiourea ligands based transition metal zn hg cd mn complexes for nonlinear optical applications; -.” 2013. Thesis, Anna University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/24759.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pabitha, G. “Crystal growth and characterisation of thiocyanate and thiourea ligands based transition metal zn hg cd mn complexes for nonlinear optical applications; -.” 2013. Web. 20 Jan 2021.

Vancouver:

Pabitha G. Crystal growth and characterisation of thiocyanate and thiourea ligands based transition metal zn hg cd mn complexes for nonlinear optical applications; -. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/24759.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pabitha G. Crystal growth and characterisation of thiocyanate and thiourea ligands based transition metal zn hg cd mn complexes for nonlinear optical applications; -. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/24759

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Anna University

8. Shanmugam, G. Synthesis crystal growth and characterization of certain benzoate and sulfonate organic nonlinear optical materials; -.

Degree: physics, 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/24854

►

The invention of high intensity laser has opened many innovative newlineways to explore the nature of the matter and its interaction with optical newlineradiation In… (more)

▼

The invention of high intensity laser has opened many innovative newlineways to explore the nature of the matter and its interaction with optical newlineradiation In recent years much attention has been devoted to optical materials newlinewith high second order nonlinearities owing to their potential use in numerous newlinemodern research fields like nonlinear optics NLO electro optic modulation newlineEOM parametric light generation optical data storage high speed newlinetelecommunications and terahertz THz wave generation and detection etc newlineAlthough various species of NLO materials are available organic crystalline newlinematerials easily preponderate their inorganic thin film polymeric and other newlinecounterparts due to their highly aligned and stable orientation of NLO newlinechromophores in crystal lattice large electro optic coefficient small dielectric newlineconstant and loss fast response time inherent synthetic flexibility ease of newlinefabrication and integration into devices etc Elucidating the relationship newlinebetween the compositions structure and properties of materials and newlinedeveloping new materials according to this relationship are two of the most newlineimportant issues in the area of materials science Moreover high quality NLO newlinecrystals with the ability to grow to the required dimensions in the laboratory newlineare much needed to realize these applications In order to identify better newlineorganic NLO materials with noncentrosymmetric space group which is a newlinebasic precondition for a potential second harmonic generation SHG newlinematerial literature survey have been carried out using Cambridge Structural newlineDatabase CSD of Cambridge Crystallographic Data Centre CCDC and newlineworld wide web www search engines like Google Yahoo etc From the newlineavailable literature it was found that relatively less number of crystalline newlinematerials only possess sufficient number of beneficial properties to render newlinethem useful in practical NLO devices Hence the prime object of the present newlinework is to identify or design novel NLO materials and study their SHG and newlineaimed to grow them as bulk single crystals newline newline

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Advisors/Committee Members: Brahadeeswaran, S.

Subjects/Keywords: Benzoate; Crystal Growth; Optical Materials; Organic Nonlinear; radiation; Sulfonate

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APA (6^th Edition):

Shanmugam, G. (2013). Synthesis crystal growth and characterization of certain benzoate and sulfonate organic nonlinear optical materials; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/24854

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shanmugam, G. “Synthesis crystal growth and characterization of certain benzoate and sulfonate organic nonlinear optical materials; -.” 2013. Thesis, Anna University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/24854.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shanmugam, G. “Synthesis crystal growth and characterization of certain benzoate and sulfonate organic nonlinear optical materials; -.” 2013. Web. 20 Jan 2021.

Vancouver:

Shanmugam G. Synthesis crystal growth and characterization of certain benzoate and sulfonate organic nonlinear optical materials; -. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/24854.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shanmugam G. Synthesis crystal growth and characterization of certain benzoate and sulfonate organic nonlinear optical materials; -. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/24854

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Wollongong

9. Sciberras, Luke W. Propagation of nonlinear optical beams in finite liquid crystal cells.

Degree: Doctor of Philosophy, 2013, University of Wollongong

URL: 010599 Mathematical Physics not elsewhere classified ; https://ro.uow.edu.au/theses/3902

► A nonlinear medium that displays promise in all-optical communications is a nematic liquid crystal. A nematic liquid crystal exhibits a “huge” nonlinearity, so that… (more)

▼ A nonlinear medium that displays promise in all-optical communications is a nematic liquid crystal. A nematic liquid crystal exhibits a “huge” nonlinearity, so that nonlinear effects can be observed over millimetre distances for relative low powered input beams (milliwatt power). Spatial optical solitons, termed nematicons, are supported in nematic liquid crystals. A further property of nematic liquid crystals is that there optical response is nonlocal, in that the elastic response of the nematic extends beyond the optical perturbing beam. This nonlocal response allows two dimensional beams, such as nematicons and optical vortices, to be stable. The equations governing nonlinear optical beam propagation in nematic liquid crystals form a non-integrable, coupled system of an nonlinear Schr¨odingertype equation for the beam and a Poisson’s equation for the medium response. This system has no known, general solutions. In this thesis, an approximate variational technique, termed modulation theory, and numerical solutions will be used to analyse the evolution and propagation of nematicons, both circular and elliptical in cross section, and optical vortices in a finite liquid crystal cell. Particular attention is paid to the effect of boundaries on the beam trajectory and stability. Modulation theory has the advantage that the coupled partial differential equations governing the beam are reduced to a finite dimensional dynamical system, which yields insights into the underlying physical mechanisms. In addition, modulation theory can be easily extended to account for the effect of the diffractive radiation shed as a beam evolves. Two methods are used to solve the equation for the medium response, Fourier series and the method of images, with the latter found to give a much more efficient solution. It is found that the cell boundaries act as a repulsive force on a beam, so that a beam has a spiral path down a cell. It is also found that interaction with cell walls can destabilise an optical vortex. A linearised stability analysis is used to determine the minimum distance of approach to a cell boundary before instability sets in. This minimum distance is found to be in excellent agreement with numerical solutions. Finally, the propagation of an elliptic nematicon with orbital angular momentum in a finite-sized cell is analysed. It is found that the inclusion of angular momentum loss to radiation is vital for the accurate description of this beam. This loss is included for the first time.

Subjects/Keywords: solitary wave; nematicon; liquid crystal; modulation theory; nonlinear waves

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sciberras, L. W. (2013). Propagation of nonlinear optical beams in finite liquid crystal cells. (Doctoral Dissertation). University of Wollongong. Retrieved from 010599 Mathematical Physics not elsewhere classified ; https://ro.uow.edu.au/theses/3902

Chicago Manual of Style (16^th Edition):

Sciberras, Luke W. “Propagation of nonlinear optical beams in finite liquid crystal cells.” 2013. Doctoral Dissertation, University of Wollongong. Accessed January 20, 2021. 010599 Mathematical Physics not elsewhere classified ; https://ro.uow.edu.au/theses/3902.

MLA Handbook (7^th Edition):

Sciberras, Luke W. “Propagation of nonlinear optical beams in finite liquid crystal cells.” 2013. Web. 20 Jan 2021.

Vancouver:

Sciberras LW. Propagation of nonlinear optical beams in finite liquid crystal cells. [Internet] [Doctoral dissertation]. University of Wollongong; 2013. [cited 2021 Jan 20]. Available from: 010599 Mathematical Physics not elsewhere classified ; https://ro.uow.edu.au/theses/3902.

Council of Science Editors:

Sciberras LW. Propagation of nonlinear optical beams in finite liquid crystal cells. [Doctoral Dissertation]. University of Wollongong; 2013. Available from: 010599 Mathematical Physics not elsewhere classified ; https://ro.uow.edu.au/theses/3902

NSYSU

10. Chang, Wei-Jin. Measurement of Two-photon absorption cross section of diacrylate using Z-scan technique.

Degree: Master, Electro-Optical Engineering, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0607117-155226

► Diacrylate mesogen is a kind of main chain liquid crystal polymers which has good photosensitive property, can be polymerized using UV-light and heat. It can… (more)

Subjects/Keywords: Z-scan; two-photon absorption; diacrylate; polymer liquid crystal; nonlinear optics

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APA (6^th Edition):

Chang, W. (2017). Measurement of Two-photon absorption cross section of diacrylate using Z-scan technique. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0607117-155226

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chang, Wei-Jin. “Measurement of Two-photon absorption cross section of diacrylate using Z-scan technique.” 2017. Thesis, NSYSU. Accessed January 20, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0607117-155226.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chang, Wei-Jin. “Measurement of Two-photon absorption cross section of diacrylate using Z-scan technique.” 2017. Web. 20 Jan 2021.

Vancouver:

Chang W. Measurement of Two-photon absorption cross section of diacrylate using Z-scan technique. [Internet] [Thesis]. NSYSU; 2017. [cited 2021 Jan 20]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0607117-155226.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chang W. Measurement of Two-photon absorption cross section of diacrylate using Z-scan technique. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0607117-155226

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of St. Andrews

11. Spurny, Marcel. Photonic crystal waveguides in chalcogenide glasses .

Degree: 2011, University of St. Andrews

URL: http://hdl.handle.net/10023/2111

► The growing speed and bandwidth requirements of telecommunication systems demand all-optical on-chip solutions. Microphotonic devices can deliver low power nonlinear signal processing solutions. This thesis… (more)

▼ The growing speed and bandwidth requirements of telecommunication systems demand all-optical on-chip solutions. Microphotonic devices can deliver low power nonlinear signal processing solutions. This thesis looks at the slow light photonic crystals in chalcogenide glasses to enhance low power nonlinear operation. I demonstrate the development of new fabrication techniques for this delicate class of materials. Both, reactive ion etching and chemically assisted ion beam etching are investigated for high quality photonic crystal fabrication. A new resist-removal technique was developed for the chemical, mechanical and light sensitive thin films. I have developed a membraning method based on vapor phase etching in combination with the development of a save and economical etching tool that can be used for a variety of vapour phase processes. Dispersion engineered slow light photonic crystals in Ge₃₃As₁₂Se₅₅ are designed and fabricated. The demonstration of low losses down to 21±8dB/cm is a prerequisite for the successful demonstration of dispersion engineered slow light waveguides up to a group index of around n[subscript(g)] ≈ 40. The slow light waveguides are used to demonstrate highly efficient third harmonic generation and the first advantages of a pure chalcogenide system over the commonly used silicon. Ge₁₁.₅As₂₄24Se₆₄.₅ is used for the fabrication of photonic crystal cavities. Quality factors of up to 13000 are demonstrated. The low nonlinear losses have enabled the demonstration of second and third harmonic generation in those cavities with powers up to twice as high as possible in silicon. A computationally efficient model for designing coupled resonator bandpass filters is used to design bandpass filters. Single ring resonators are fabricated using a novel method to define the circular shape of the rings to improve the fabrication quality. The spectral responses of the ring resonators are used to determine the coupling coefficient needed for the design and fabrication of the bandpass filters. A flat top bandpass filter is fabricated and characterized as demonstration of this method. A passive all-optical regenerator is proposed, by integrating a slow-light photonic crystal waveguide with a band-pass filter based on coupled ring resonators. A route of designing the regenerator is proposed by first using the dispersion engineering results for nonlinear pulse propagation and then using the filter responses to calculate the nonlinear transfer function. Advisors/Committee Members: Krauss, Thomas F (advisor).

Subjects/Keywords: Photonic crystal; Chalcogenide; Slow light; Nonlinear optics; Chalcogenide glasses

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Spurny, M. (2011). Photonic crystal waveguides in chalcogenide glasses . (Thesis). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/2111

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Spurny, Marcel. “Photonic crystal waveguides in chalcogenide glasses .” 2011. Thesis, University of St. Andrews. Accessed January 20, 2021. http://hdl.handle.net/10023/2111.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Spurny, Marcel. “Photonic crystal waveguides in chalcogenide glasses .” 2011. Web. 20 Jan 2021.

Vancouver:

Spurny M. Photonic crystal waveguides in chalcogenide glasses . [Internet] [Thesis]. University of St. Andrews; 2011. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/10023/2111.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Spurny M. Photonic crystal waveguides in chalcogenide glasses . [Thesis]. University of St. Andrews; 2011. Available from: http://hdl.handle.net/10023/2111

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

12. Ghafari Banaee, Mohamadreza. Classical and quantum nonlinear optics in confined photonic structures.

Degree: PhD, Physics, 2007, University of British Columbia

URL: http://hdl.handle.net/2429/406

► Nonlinear optical phenomena associated with high-order soliton breakup in photonic crystal fibres and squeezed state generation in three dimensional photonic crystal microcavities are investigated. In… (more)

▼ Nonlinear optical phenomena associated with high-order soliton breakup in photonic crystal fibres and squeezed state generation in three dimensional photonic crystal microcavities are investigated. In both cases, the properties of periodically patterned, high-index contrast dielectric structures are engineered to control the dispersion and local field enhancements of the electromagnetic field. Ultra-short pulse propagation in a polarization-maintaining microstructured fibre (with 1 um core diameter and 1.1 m length) is investigated experimentally and theoretically. For an 80 MHz train of 130 fs pulses with average propagating powers in the fibre up to 13.8 mW, the output spectra consist of multiple discrete solitons that shift continuously to lower energies as they propagate in the lowest transverse mode of the fibre. The number of solitons and the amount that they shift both increase with the launched power. All of the data is quantitatively consistent with solutions of the nonlinear Schrodinger equation, but only when the Raman nonlinearity is treated without approximation, and self-steepening is included. The feasibility of using a parametric down-conversion process to generate squeezed electromagnetic states in 3D photonic crystal microcavity structures is investigated for the first time. The spectrum of the squeezed light is theoretically calculated by using an open cavity quantum mechanical formalism. The cavity communicates with two main channels, which model vertical radiation losses and coupling into a single-mode waveguide respectively. The amount of squeezing is determined by the correlation functions relating the field quadratures of light coupled into the waveguide. All of the relevant model parameters are realistically estimated using 3D finite-difference time-domain (FDTD) simulations. Squeezing up to ~20% below the shot noise level is predicted for reasonable optical excitation levels. To preserve the squeezed nature of the light generated in the microcavity, a unidirectional coupling geometry from the microcavity to a ridge waveguide in a slab photonic crystal structure is studied. The structure was successfully fabricated in a silicon membrane, and experimental measurements of the efficiency for the signal coupled out of the structure are in good agreement with the result of FDTD simulations. The coupling efficiency of the cavity mode to the output channel is ~60%.

Subjects/Keywords: Nonlinear optics; photonic crystal; dielectric

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ghafari Banaee, M. (2007). Classical and quantum nonlinear optics in confined photonic structures. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/406

Chicago Manual of Style (16^th Edition):

Ghafari Banaee, Mohamadreza. “Classical and quantum nonlinear optics in confined photonic structures.” 2007. Doctoral Dissertation, University of British Columbia. Accessed January 20, 2021. http://hdl.handle.net/2429/406.

MLA Handbook (7^th Edition):

Ghafari Banaee, Mohamadreza. “Classical and quantum nonlinear optics in confined photonic structures.” 2007. Web. 20 Jan 2021.

Vancouver:

Ghafari Banaee M. Classical and quantum nonlinear optics in confined photonic structures. [Internet] [Doctoral dissertation]. University of British Columbia; 2007. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/2429/406.

Council of Science Editors:

Ghafari Banaee M. Classical and quantum nonlinear optics in confined photonic structures. [Doctoral Dissertation]. University of British Columbia; 2007. Available from: http://hdl.handle.net/2429/406

University of Colorado

13. Khajehtourian, Romik. Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions.

Degree: PhD, 2017, University of Colorado

URL: https://scholar.colorado.edu/asen_gradetds/221

► Wave motion lies at the heart of many disciplines in the physical sciences and engineering. For example, problems and applications involving light, sound, heat,… (more)

▼ Wave motion lies at the heart of many disciplines in the physical sciences and engineering. For example, problems and applications involving light, sound, heat, or fluid flow are all likely to involve wave dynamics at some level. A particular class of problems is concerned with the propagation of elastic waves in a solid medium, such as a fiber-reinforced composite material responding to vibratory excitations, or soil and rock admitting seismic waves moments after the onset of an earthquake, or phonon transport in a semiconducting crystal like silicon. Regardless of the type of wave, the dispersion relation provides a fundamental characterization of the elastodynamic properties of the medium. The first part of the dissertation examines the propagation of a large-amplitude elastic wave in a one-dimensional homogeneous medium with a focus on the effects of inherent nonlinearities on the dispersion relation. Considering a thin rod, where the thickness is small compared to the wavelength, an exact, closed-form formulation is presented for the treatment of two types of nonlinearity in the strain-displacement gradient relation: Green-Lagrange and Hencky. The derived relation is then verified by direct time-domain simulations, examining both instantaneous dispersion (by direct observation) and short-term, pre-breaking dispersion (by Fourier transformation). A high-order perturbation analysis is also conducted yielding an explicit analytical space-time solution, which is shown to be spectrally accurate. The results establish a perfect match between theory and simulation and reveal that regardless of the strength of the nonlinearity, the dispersion relation fully embodies all information pertaining to the nonlinear harmonic generation mechanism that unfolds as an arbitrary-profiled wave evolves in the medium. In the second part of the dissertation, the analysis is extended to a continuous periodic thin rod exhibiting multiple phases or embedded local resonators. The extended method, which is based on a standard transfer-matrix formulation augmented with a nonlinear enrichment at the constitutive material level, yields an approximate band structure that is accurate to an amplitude that is roughly one eighth of the unit cell length. This approach represents a new paradigm for examining the balance between periodicity and nonlinearity in shaping the nature of wave motion. Advisors/Committee Members: Mahmoud I. Hussein, Mark J. Ablowitz, Alireza Doostan, John A. Evans, Carlos A. Felippa.

Subjects/Keywords: dispersive elastic waves; elastic metamaterial; finite strain; nonlinear dispersion relation; nonlinear waves; phononic crystal; Aerodynamics and Fluid Mechanics; Aerospace Engineering; Mathematics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khajehtourian, R. (2017). Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/asen_gradetds/221

Chicago Manual of Style (16^th Edition):

Khajehtourian, Romik. “Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions.” 2017. Doctoral Dissertation, University of Colorado. Accessed January 20, 2021. https://scholar.colorado.edu/asen_gradetds/221.

MLA Handbook (7^th Edition):

Khajehtourian, Romik. “Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions.” 2017. Web. 20 Jan 2021.

Vancouver:

Khajehtourian R. Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions. [Internet] [Doctoral dissertation]. University of Colorado; 2017. [cited 2021 Jan 20]. Available from: https://scholar.colorado.edu/asen_gradetds/221.

Council of Science Editors:

Khajehtourian R. Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions. [Doctoral Dissertation]. University of Colorado; 2017. Available from: https://scholar.colorado.edu/asen_gradetds/221

University of Colorado

14. Khajehtourian, Romik. Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions.

Degree: PhD, 2017, University of Colorado

URL: https://scholar.colorado.edu/asen_gradetds/171

► Wave motion lies at the heart of many disciplines in the physical sciences and engineering. For example, problems and applications involving light, sound, heat,… (more)

▼ Wave motion lies at the heart of many disciplines in the physical sciences and engineering. For example, problems and applications involving light, sound, heat, or fluid flow are all likely to involve wave dynamics at some level. A particular class of problems is concerned with the propagation of elastic waves in a solid medium, such as a fiber-reinforced composite material responding to vibratory excitations, or soil and rock admitting seismic waves moments after the onset of an earthquake, or phonon transport in a semiconducting crystal like silicon. Regardless of the type of wave, the dispersion relation provides a fundamental characterization of the elastodynamic properties of the medium. The first part of the dissertation examines the propagation of a large-amplitude elastic wave in a one-dimensional homogeneous medium with a focus on the effects of inherent nonlinearities on the dispersion relation. Considering a thin rod, where the thickness is small compared to the wavelength, an exact, closed-form formulation is presented for the treatment of two types of nonlinearity in the strain-displacement gradient relation: Green-Lagrange and Hencky. The derived relation is then verified by direct time-domain simulations, examining both instantaneous dispersion (by direct observation) and short-term, pre-breaking dispersion (by Fourier transformation). A high-order perturbation analysis is also conducted yielding an explicit analytical space-time solution, which is shown to be spectrally accurate. The results establish a perfect match between theory and simulation and reveal that regardless of the strength of the nonlinearity, the dispersion relation fully embodies all information pertaining to the nonlinear harmonic generation mechanism that unfolds as an arbitrary-profiled wave evolves in the medium. In the second part of the dissertation, the analysis is extended to a continuous periodic thin rod exhibiting multiple phases or embedded local resonators. The extended method, which is based on a standard transfer-matrix formulation augmented with a nonlinear enrichment at the constitutive material level, yields an approximate band structure that is accurate to an amplitude that is roughly one eighth of the unit cell length. This approach represents a new paradigm for examining the balance between periodicity and nonlinearity in shaping the nature of wave motion. Advisors/Committee Members: Mahmoud I. Hussein, Mark J. Ablowitz, Alireza Doostan, John A. Evans, Carlos A. Felippa.

Subjects/Keywords: dispersive elastic waves; elastic metamaterial; finite strain; nonlinear dispersion relation; nonlinear waves; phononic crystal; Aerospace Engineering; Engineering Mechanics; Mathematics

Record Details Similar Records Cite « Share

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khajehtourian, R. (2017). Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions. (Doctoral Dissertation). University of Colorado. Retrieved from https://scholar.colorado.edu/asen_gradetds/171

Chicago Manual of Style (16^th Edition):

Khajehtourian, Romik. “Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions.” 2017. Doctoral Dissertation, University of Colorado. Accessed January 20, 2021. https://scholar.colorado.edu/asen_gradetds/171.

MLA Handbook (7^th Edition):

Khajehtourian, Romik. “Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions.” 2017. Web. 20 Jan 2021.

Vancouver:

Khajehtourian R. Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions. [Internet] [Doctoral dissertation]. University of Colorado; 2017. [cited 2021 Jan 20]. Available from: https://scholar.colorado.edu/asen_gradetds/171.

Council of Science Editors:

Khajehtourian R. Nonlinear Dispersive Elastic Waves in Solids: Exact, Approximate, and Numerical Solutions. [Doctoral Dissertation]. University of Colorado; 2017. Available from: https://scholar.colorado.edu/asen_gradetds/171

Anna University

15. Anandan P. Studies on the growth aspects and characterization of some amino acids based semiorganic nonlinear optical single crystals;.

Degree: 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/10391

►

Single crystals provide the purest form of samples for basic research and also serve as the base components for large number of devices. It has… (more)

Subjects/Keywords: Amino acids; semiorganic nonlinear optical single crystal; L-arginine phosphate; L-histidine; L-tyrosine

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APA (6^th Edition):

P, A. (2013). Studies on the growth aspects and characterization of some amino acids based semiorganic nonlinear optical single crystals;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/10391

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

P, Anandan. “Studies on the growth aspects and characterization of some amino acids based semiorganic nonlinear optical single crystals;.” 2013. Thesis, Anna University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/10391.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

P, Anandan. “Studies on the growth aspects and characterization of some amino acids based semiorganic nonlinear optical single crystals;.” 2013. Web. 20 Jan 2021.

Vancouver:

P A. Studies on the growth aspects and characterization of some amino acids based semiorganic nonlinear optical single crystals;. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/10391.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

P A. Studies on the growth aspects and characterization of some amino acids based semiorganic nonlinear optical single crystals;. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/10391

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

16. Barnwell, Ellis. One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning.

Degree: PhD, 2015, University of Manchester

URL: https://www.research.manchester.ac.uk/portal/en/theses/one-and-twodimensional-propagation-of-waves-in-periodic-heterogeneous-media-transient-effects-and-band-gap-tuning(9a5bd9d7-09da-46a8-ae57-b63d9d815f10).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647394

► In this thesis, the propagation of transient waves in heterogeneous media and the tuning of periodic elastic materials are studied. The behaviour of time harmonic… (more)

▼ In this thesis, the propagation of transient waves in heterogeneous media and the tuning of periodic elastic materials are studied. The behaviour of time harmonic waves in complex media is a well understood phenomenon. The primary aim of this text is to gain a deeper understanding into the propagation of transient waves in periodic media. The secondary aim is to explore the time harmonic behaviour of two dimensional pre-stressed elastic media and investigate the plausibility of band gap tuning. We begin this text by investigating the reflection of pulses from a semi-infinite set of point masses (we call 'beads') on a string. The reflected pulse is formulated using Fourier transforms which involve the harmonic reflection coefficient. We find that the reflected amplitude of a harmonic wave depends on its frequency. We then ask whether it is possible to find an effective reflection coefficient by assuming the beaded portion of the string is given by some effective homogeneous medium. An effective reflection coefficient is found by assuming the homogeneous medium has the wavenumber given by the infinite beaded string. This effective reflection coefficient is compared to the exact reflection coefficient found using the Wiener-Hopf technique. The results from studying the reflection problem gave inspiration to chapter 4, which focuses on the time dependent forcing of an infinite beaded string that is initially at rest. We again use the Fourier transform to find a time dependent solution. The z-transform is then used, after sampling the solution at the bead positions. We impose a sinusoidal loading which is switched on at a specified time. In doing this we are able to explore how the system behaves differently when excited in a stop band, a pass band and at a frequency on the edge between the two. An exact solution for the infinite beaded string is found at any point in time by expanding the branch points of the solution as a series of poles. We compare this exact solution to the long time asymptotics. The energy input into the system is studied with the results from the exact solution and long time approximation showing agreement. Interesting behaviour is discovered on the two edges between stop and pass bands. In chapter 5 the effect of a nonlinear elastic pre-stress on the wave band structure of a two dimensional phononic crystal is investigated. In this chapter we restrict ourselves to incompressible materials with the strain energy functions used being the neo-Hookean, Mooney-Rivlin and Fung. The method of small-on-large is used to derive the equation for incremental elastic waves and then the plane wave expansion method is used to find the band structure. Finally, chapter 6 focuses on the same geometry with a compressible elastic material. The strain energy function used is the one suggested by Levinson and Burgess. We use the theory of small-on-large to derive the incremental equations for coupled small amplitude pressure and shear waves in this material. In both compressible and incompressible materials we show how…

Subjects/Keywords: 530.12; Periodic media; Stop bands; Transient waves; Heterogeneous media; Nonlinear elasticity; Phononic crystal

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Barnwell, E. (2015). One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/one-and-twodimensional-propagation-of-waves-in-periodic-heterogeneous-media-transient-effects-and-band-gap-tuning(9a5bd9d7-09da-46a8-ae57-b63d9d815f10).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647394

Chicago Manual of Style (16^th Edition):

Barnwell, Ellis. “One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning.” 2015. Doctoral Dissertation, University of Manchester. Accessed January 20, 2021. https://www.research.manchester.ac.uk/portal/en/theses/one-and-twodimensional-propagation-of-waves-in-periodic-heterogeneous-media-transient-effects-and-band-gap-tuning(9a5bd9d7-09da-46a8-ae57-b63d9d815f10).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647394.

MLA Handbook (7^th Edition):

Barnwell, Ellis. “One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning.” 2015. Web. 20 Jan 2021.

Vancouver:

Barnwell E. One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning. [Internet] [Doctoral dissertation]. University of Manchester; 2015. [cited 2021 Jan 20]. Available from: https://www.research.manchester.ac.uk/portal/en/theses/one-and-twodimensional-propagation-of-waves-in-periodic-heterogeneous-media-transient-effects-and-band-gap-tuning(9a5bd9d7-09da-46a8-ae57-b63d9d815f10).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647394.

Council of Science Editors:

Barnwell E. One and two-dimensional propagation of waves in periodic heterogeneous media : transient effects and band gap tuning. [Doctoral Dissertation]. University of Manchester; 2015. Available from: https://www.research.manchester.ac.uk/portal/en/theses/one-and-twodimensional-propagation-of-waves-in-periodic-heterogeneous-media-transient-effects-and-band-gap-tuning(9a5bd9d7-09da-46a8-ae57-b63d9d815f10).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647394

17. Ripoche, Nicolas. Triphenylmethylium-Based Multitopic Two-Photon Absorbers: Synthesis and Characterization .

Degree: 2015, Australian National University

URL: http://hdl.handle.net/1885/101988

► During this PhD, new organic and organometallic triphenylmethylium dyes were synthesized. Due to their multipolar structure, these compounds have been anticipated to possess strong nonlinear… (more)

Subjects/Keywords: NonLinear Optics; Biphotonic absorption; Malachite Green; Violet Crystal; Organoiron; Organoruthenium; ferrocene; redox commutation

11 more images…

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APA (6^th Edition):

Ripoche, N. (2015). Triphenylmethylium-Based Multitopic Two-Photon Absorbers: Synthesis and Characterization . (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/101988

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ripoche, Nicolas. “Triphenylmethylium-Based Multitopic Two-Photon Absorbers: Synthesis and Characterization .” 2015. Thesis, Australian National University. Accessed January 20, 2021. http://hdl.handle.net/1885/101988.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ripoche, Nicolas. “Triphenylmethylium-Based Multitopic Two-Photon Absorbers: Synthesis and Characterization .” 2015. Web. 20 Jan 2021.

Vancouver:

Ripoche N. Triphenylmethylium-Based Multitopic Two-Photon Absorbers: Synthesis and Characterization . [Internet] [Thesis]. Australian National University; 2015. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1885/101988.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ripoche N. Triphenylmethylium-Based Multitopic Two-Photon Absorbers: Synthesis and Characterization . [Thesis]. Australian National University; 2015. Available from: http://hdl.handle.net/1885/101988

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

18. Boursier, Elodie. Génération paramétrique infrarouge dans les cristaux de La3Ga5,5Ta0,5O14 et BaGa4Se7 : Parametric infrared generation in La3Ga5.5Ta0.5O14 and BaGa4Se7 crystals.

Degree: Docteur es, Optique et radiofréquence, 2016, Université Grenoble Alpes (ComUE)

URL: http://www.theses.fr/2016GREAT070

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Il y a actuellement un réel besoin de sources lasers tout solide capables d’émettre un rayonnement cohérent depuis l’infrarouge lointain au térahertz pour des applications… (more)

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Il y a actuellement un réel besoin de sources lasers tout solide capables d’émettre un rayonnement cohérent depuis l’infrarouge lointain au térahertz pour des applications variées comme la spectroscopie et la détection de molécules d'intérêt atmosphérique par exemple. La meilleure alternative est l’optique non linéaire paramétrique du second ordre permettant la conversion de fréquence d’un laser monochromatique dans un cristal massif aux propriétés optiques adaptées. Cependant il faut trouver de nouveaux matériaux car ceux déjà identifiés ne donnent pas satisfaction, leur grande faiblesse étant un seuil de dommage optique trop bas pour des applications à haute énergie. Nous sommes en mesure de relever ce défi en combinant depuis peu deux faisceaux complètement indépendants en accordabilité et en polarisation dans un échantillon taillé en forme de sphère ou de cylindre. Ainsi, nous étudions directement la génération de différence de fréquence dans le domaine de transparence du cristal en scannant son espace ou un plan. Il s'agit d'identifier les directions, dîtes d’accord de phase, où la biréfringence compense la dispersion en longueur d’onde des indices de réfraction, mais aussi les rendements de conversion et les acceptances spectrale et angulaires associés. Si des photons issus des deux faisceaux incidents traversent le cristal selon ces directions, des photons de longueur d’onde plus grande sont générés, avec une énergie optimale dont la valeur est d’autant plus élevée que le coefficient non linéaire du cristal est fort. La thèse est dédiée à l’étude de nouveaux cristaux uniques acquis d’équipes étrangères leaders dans leur élaboration. L’objectif visé est la conception de sources de lumière de type Oscillateur Paramétrique Optique (OPO) ou Générateur Paramétrique Optique (OPG) accordables dans l’infrarouge ou le térahertz, plus énergétiques que les sources actuelles.

Nowadays, solid state laser is one way to access the infrared and terahertz light with a good coherence and a high brightness, for broad application prospects like spectroscopy and atmospheric molecules detection. The best way to generate this light is use second order parametric nonlinear optics which allows the frequency conversion of a monochromatic laser through a crystal with appropriate properties. However, the goal is find new materials since a lot of crystals already identified present a too low optical damage threshold for high energy applications. By combining two completely independent tunable and polarized beams in a sample cut as a sphere or a cylinder, we are able to take up the challenge. In this way, we could directly study the difference frequency generation in the whole transparency range by scanning one plane. The principle is to identify not only directions, called phase-matching, where the birefringence compensates the refractive index dispersion but also associated conversion efficiencies and spectral and angular acceptances. When the photons from the two incoming beams get through a crystal in these particular directions,…

Advisors/Committee Members: Segonds, Patricia (thesis director), Boulanger, Benoît (thesis director).

Subjects/Keywords: Infrarouge; Cristaux; Optique non linéaire; Laser; Infrared; Crystal; Nonlinear optics; Laser; 620

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APA (6^th Edition):

Boursier, E. (2016). Génération paramétrique infrarouge dans les cristaux de La3Ga5,5Ta0,5O14 et BaGa4Se7 : Parametric infrared generation in La3Ga5.5Ta0.5O14 and BaGa4Se7 crystals. (Doctoral Dissertation). Université Grenoble Alpes (ComUE). Retrieved from http://www.theses.fr/2016GREAT070

Chicago Manual of Style (16^th Edition):

Boursier, Elodie. “Génération paramétrique infrarouge dans les cristaux de La3Ga5,5Ta0,5O14 et BaGa4Se7 : Parametric infrared generation in La3Ga5.5Ta0.5O14 and BaGa4Se7 crystals.” 2016. Doctoral Dissertation, Université Grenoble Alpes (ComUE). Accessed January 20, 2021. http://www.theses.fr/2016GREAT070.

MLA Handbook (7^th Edition):

Boursier, Elodie. “Génération paramétrique infrarouge dans les cristaux de La3Ga5,5Ta0,5O14 et BaGa4Se7 : Parametric infrared generation in La3Ga5.5Ta0.5O14 and BaGa4Se7 crystals.” 2016. Web. 20 Jan 2021.

Vancouver:

Boursier E. Génération paramétrique infrarouge dans les cristaux de La3Ga5,5Ta0,5O14 et BaGa4Se7 : Parametric infrared generation in La3Ga5.5Ta0.5O14 and BaGa4Se7 crystals. [Internet] [Doctoral dissertation]. Université Grenoble Alpes (ComUE); 2016. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2016GREAT070.

Council of Science Editors:

Boursier E. Génération paramétrique infrarouge dans les cristaux de La3Ga5,5Ta0,5O14 et BaGa4Se7 : Parametric infrared generation in La3Ga5.5Ta0.5O14 and BaGa4Se7 crystals. [Doctoral Dissertation]. Université Grenoble Alpes (ComUE); 2016. Available from: http://www.theses.fr/2016GREAT070

University of Western Ontario

19. Changizrezaei, Setarehalsadat. Simulation of Heterogeneous Colloidal Particles Immersed in Liquid Crystals.

Degree: 2016, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/3670

► This thesis describes an investigation of interactions between colloidal particles immersed in a liquid crystal. The presence of colloidal particles in the liquid crystal distorts… (more)

Subjects/Keywords: Liquid Crystal; Lattice Boltzmann; Condensed Matter Physics; Statistical, Nonlinear, and Soft Matter Physics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Changizrezaei, S. (2016). Simulation of Heterogeneous Colloidal Particles Immersed in Liquid Crystals. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/3670

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Changizrezaei, Setarehalsadat. “Simulation of Heterogeneous Colloidal Particles Immersed in Liquid Crystals.” 2016. Thesis, University of Western Ontario. Accessed January 20, 2021. https://ir.lib.uwo.ca/etd/3670.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Changizrezaei, Setarehalsadat. “Simulation of Heterogeneous Colloidal Particles Immersed in Liquid Crystals.” 2016. Web. 20 Jan 2021.

Vancouver:

Changizrezaei S. Simulation of Heterogeneous Colloidal Particles Immersed in Liquid Crystals. [Internet] [Thesis]. University of Western Ontario; 2016. [cited 2021 Jan 20]. Available from: https://ir.lib.uwo.ca/etd/3670.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Changizrezaei S. Simulation of Heterogeneous Colloidal Particles Immersed in Liquid Crystals. [Thesis]. University of Western Ontario; 2016. Available from: https://ir.lib.uwo.ca/etd/3670

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

20. Chowdhury, Avishek. Mechanical nonlinear dynamics of a suspended photonic crystal membrane with integrated actuation : Dynamique non linéaire mécanique d’une membrane photonique cristaux suspendu avec actionnement intégrée.

Degree: Docteur es, Physique, 2016, Université Paris-Saclay (ComUE)

URL: http://www.theses.fr/2016SACLS284

► Les nonlinéarités dans les systèmes nanomécaniques peuvent provenir d’effets dispersif ou dissipatif et ce dans divers systèmes (résistifs, inductifs et capacitifs). Au-delà de l’intérêt fondamental… (more)

▼ Les nonlinéarités dans les systèmes nanomécaniques peuvent provenir d’effets dispersif ou dissipatif et ce dans divers systèmes (résistifs, inductifs et capacitifs). Au-delà de l’intérêt fondamental pour tester la réponse dynamique d’un système non-linéaire à plusieurs dégrées de libertés, les nonlinéarités de tels systèmes ouvre la voie vers des capteurs nanomécanique et le traitement du signal. Le résonateur nanomécanique dont la réponse nonlinéaire est étudié, est une membrane suspendue à cristal photonique bidimensionnel utilisée comme miroir déformable. Sa faible masse et sa haute réflectivité en font un candidat idéal pour l’électro-opto-mécanique. L’actuation d’une telle membrane dans le domaine fréquentiel du MHz est rendu possible par des électrodes inter-digitées en dessous de la membrane assurant ainsi l’uniformité de la force d’actuation sur cette dernière. La fabrication de telles structures est basée sur l’intégration hétérogène 3D.La force électrostatique qui s’applique sur la membrane induit des non-linéarités mécaniques avec notamment un effet bistable, des résonances superharmoniques et des résonances stochastiques.La membrane est mise en mouvement par un potentiel électrique V(t) = Vdc + Vac cos(w.t), où Vdc est l’amplitude du courant continu, Vac l’amplitude du courant alternatif à la fréquence d’excitation w;. Le système se comporte alors comme une capacité de sorte que la force qui s’applique sur la membrane varie de manière quadratique avec la tension appliquée. Selon la tension DC ou AC, le comportement de la structure est différent. L’augmentation de la tension DC induit une augmentation de la tension de polarisation sur le matériau qui par conséquent modifie la fréquence propre de la membrane. Tandis que l’augmentation de la tension AC cause l’augmentation de l’amplitude des oscillations de la membrane pouvant aller jusqu’à atteindre le régime non-linéaire.Dans une première série de mesure, la membrane est excitée à la résonance avec une fréquence w; égale à la fréquence du mode mécanique fondamental wm. A partir de la réponse fréquentielle du système, il est possible d’identifier différents modes mécaniques de la membrane sondé optiquement. Pour une excitation plus importante, il est possible d’observer des effets de bistabilité mécanique. Ces non-linéarités sont dues à l’élongation au niveau des points d’ancrage de la membrane.La méthode la plus commune pour agir sur la membrane est l’excitation proche de la résonance fondamentale. Cependant la technique de la résonance superharmonique peut également être utilisée. Cela consiste à appliquer la fréquence d’excitation w; à une fréquence égale à wm/n où n est un entier. La possibilité d’utiliser cette technique est fortement dépendante des nonlinéarités présentes dans le système. Ainsi, l’existence d’une résonance super harmonique à wm/n résulte de la présence d’une nonlinéarité d’ordre n. Dans une seconde série de mesure, un balayage des résonances superharmoniques en fonction de la fréquence et de la puissance a été réalisé en modulant la… Advisors/Committee Members: Robert-Philip, Isabelle (thesis director).

Subjects/Keywords: Opto-Mecanique; Cristal photonique; Mecanique non-Lineaire; Optomechanics; Photonic crystal; Nonlinear mechanics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chowdhury, A. (2016). Mechanical nonlinear dynamics of a suspended photonic crystal membrane with integrated actuation : Dynamique non linéaire mécanique d’une membrane photonique cristaux suspendu avec actionnement intégrée. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2016SACLS284

Chicago Manual of Style (16^th Edition):

Chowdhury, Avishek. “Mechanical nonlinear dynamics of a suspended photonic crystal membrane with integrated actuation : Dynamique non linéaire mécanique d’une membrane photonique cristaux suspendu avec actionnement intégrée.” 2016. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed January 20, 2021. http://www.theses.fr/2016SACLS284.

MLA Handbook (7^th Edition):

Chowdhury, Avishek. “Mechanical nonlinear dynamics of a suspended photonic crystal membrane with integrated actuation : Dynamique non linéaire mécanique d’une membrane photonique cristaux suspendu avec actionnement intégrée.” 2016. Web. 20 Jan 2021.

Vancouver:

Chowdhury A. Mechanical nonlinear dynamics of a suspended photonic crystal membrane with integrated actuation : Dynamique non linéaire mécanique d’une membrane photonique cristaux suspendu avec actionnement intégrée. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2016. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2016SACLS284.

Council of Science Editors:

Chowdhury A. Mechanical nonlinear dynamics of a suspended photonic crystal membrane with integrated actuation : Dynamique non linéaire mécanique d’une membrane photonique cristaux suspendu avec actionnement intégrée. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2016. Available from: http://www.theses.fr/2016SACLS284

University of Bath

21. Stone, James. Photonic crystal fibres and their applications in the nonlinear regime.

Degree: PhD, 2009, University of Bath

URL: https://researchportal.bath.ac.uk/en/studentthesis/photonic-crystal-fibres-and-their-applications-in-the-nonlinear-regime(9f4d6f66-a446-42a6-9858-3e8df36ed171).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503388

► This thesis presents several advances in the technology and applications of photonic crystal fibres achieved over the last three years. Chapters 1 and 2 give… (more)

Subjects/Keywords: 535; Photonic crystal fibres; nonlinear optics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Stone, J. (2009). Photonic crystal fibres and their applications in the nonlinear regime. (Doctoral Dissertation). University of Bath. Retrieved from https://researchportal.bath.ac.uk/en/studentthesis/photonic-crystal-fibres-and-their-applications-in-the-nonlinear-regime(9f4d6f66-a446-42a6-9858-3e8df36ed171).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503388

Chicago Manual of Style (16^th Edition):

Stone, James. “Photonic crystal fibres and their applications in the nonlinear regime.” 2009. Doctoral Dissertation, University of Bath. Accessed January 20, 2021. https://researchportal.bath.ac.uk/en/studentthesis/photonic-crystal-fibres-and-their-applications-in-the-nonlinear-regime(9f4d6f66-a446-42a6-9858-3e8df36ed171).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503388.

MLA Handbook (7^th Edition):

Stone, James. “Photonic crystal fibres and their applications in the nonlinear regime.” 2009. Web. 20 Jan 2021.

Vancouver:

Stone J. Photonic crystal fibres and their applications in the nonlinear regime. [Internet] [Doctoral dissertation]. University of Bath; 2009. [cited 2021 Jan 20]. Available from: https://researchportal.bath.ac.uk/en/studentthesis/photonic-crystal-fibres-and-their-applications-in-the-nonlinear-regime(9f4d6f66-a446-42a6-9858-3e8df36ed171).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503388.

Council of Science Editors:

Stone J. Photonic crystal fibres and their applications in the nonlinear regime. [Doctoral Dissertation]. University of Bath; 2009. Available from: https://researchportal.bath.ac.uk/en/studentthesis/photonic-crystal-fibres-and-their-applications-in-the-nonlinear-regime(9f4d6f66-a446-42a6-9858-3e8df36ed171).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503388

University of Bath

22. McMillan, Alex. Development of an all-fibre source of heralded single photons.

Degree: PhD, 2012, University of Bath

URL: https://researchportal.bath.ac.uk/en/studentthesis/development-of-an-allfibre-source-of-heralded-single-photons(42f56d0d-b055-4e29-8603-fa87927a3b03).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557827

► The preparation of single photons in a pure quantum state is a subject of great interest in physics, enabling the control of light at an… (more)

▼ The preparation of single photons in a pure quantum state is a subject of great interest in physics, enabling the control of light at an unprecedented level. The ease with which certain degrees of freedom of photon states, such as polarisation, can be manipulated, along with the inherent resilience of photons to decoherence, makes them well suited for use as qubits. Recent rapid developments in the transmission and processing of quantum information, as well as the likely technological impact of potential real-world applications such as quantum cryptography and quantum computation, mean that the demand for high performance single photon sources is likely to increase in the near future. One approach to producing single photon states, which are known to be in a well-defined spatio-temporal mode without destructively measuring them, is to take advantage of nonlinear optics. Nonlinear processes can be used to realise frequency conversion by generating a single, correlated pair of photons from an intense pump laser source. The detection of one of the photons from a pair can then be used to indicate the presence of the other photon in the pair, a procedure known as heralding. This thesis describes the development of a source of heralded single photons at 1550 nm, generated directly in the core of a photonic crystal fibre (PCF). By taking advantage of low loss fibre components for the required spectral filtering of the generated photon state, a heralding fidelity of 52% was achieved. The source was designed to be used with a picosecond pulsed fibre laser, making it relatively low cost and maintenance free. With 148 mW of average pump power a heralded output photon rate of 6.4 × 104 s-1 was observed, demonstrating the brightness of the source. The purity of the generated single photons was established by measuring non-classical interference, with a visibility of 70%, between the photons output from this source and a source based on a PPLN waveguide. The fabrication of a series of birefringent PCFs for the generation of spectrally pure state photons at 1550 nm is also discussed. These PCFs will be useful for incorporation in the next generation of high performance, fibre-based photon sources.

Subjects/Keywords: 539.7217; photon; quantum information; photonic crystal fiber; Nonlinear optics; four-wave mixing

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APA (6^th Edition):

McMillan, A. (2012). Development of an all-fibre source of heralded single photons. (Doctoral Dissertation). University of Bath. Retrieved from https://researchportal.bath.ac.uk/en/studentthesis/development-of-an-allfibre-source-of-heralded-single-photons(42f56d0d-b055-4e29-8603-fa87927a3b03).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557827

Chicago Manual of Style (16^th Edition):

McMillan, Alex. “Development of an all-fibre source of heralded single photons.” 2012. Doctoral Dissertation, University of Bath. Accessed January 20, 2021. https://researchportal.bath.ac.uk/en/studentthesis/development-of-an-allfibre-source-of-heralded-single-photons(42f56d0d-b055-4e29-8603-fa87927a3b03).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557827.

MLA Handbook (7^th Edition):

McMillan, Alex. “Development of an all-fibre source of heralded single photons.” 2012. Web. 20 Jan 2021.

Vancouver:

McMillan A. Development of an all-fibre source of heralded single photons. [Internet] [Doctoral dissertation]. University of Bath; 2012. [cited 2021 Jan 20]. Available from: https://researchportal.bath.ac.uk/en/studentthesis/development-of-an-allfibre-source-of-heralded-single-photons(42f56d0d-b055-4e29-8603-fa87927a3b03).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557827.

Council of Science Editors:

McMillan A. Development of an all-fibre source of heralded single photons. [Doctoral Dissertation]. University of Bath; 2012. Available from: https://researchportal.bath.ac.uk/en/studentthesis/development-of-an-allfibre-source-of-heralded-single-photons(42f56d0d-b055-4e29-8603-fa87927a3b03).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557827

Kent State University

23. Lazo-Martinez, Israel Esteban. Liquid Crystal Enabled Electrokinetic Phenomena.

Degree: PhD, College of Arts and Sciences / Department of Chemical Physics, 2014, Kent State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=kent1397725003

► Electrophoresis (EP) is a motion of charged dispersed particles relative to a fluid in a uniform electric field. The effect is widely used to separate… (more)

Subjects/Keywords: Physics; Liquid Crystal Enabled-Electrophoresis, Electro-osmosis, AC Nonlinear electrokinetics, Flow visualization

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lazo-Martinez, I. E. (2014). Liquid Crystal Enabled Electrokinetic Phenomena. (Doctoral Dissertation). Kent State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=kent1397725003

Chicago Manual of Style (16^th Edition):

Lazo-Martinez, Israel Esteban. “Liquid Crystal Enabled Electrokinetic Phenomena.” 2014. Doctoral Dissertation, Kent State University. Accessed January 20, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=kent1397725003.

MLA Handbook (7^th Edition):

Lazo-Martinez, Israel Esteban. “Liquid Crystal Enabled Electrokinetic Phenomena.” 2014. Web. 20 Jan 2021.

Vancouver:

Lazo-Martinez IE. Liquid Crystal Enabled Electrokinetic Phenomena. [Internet] [Doctoral dissertation]. Kent State University; 2014. [cited 2021 Jan 20]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1397725003.

Council of Science Editors:

Lazo-Martinez IE. Liquid Crystal Enabled Electrokinetic Phenomena. [Doctoral Dissertation]. Kent State University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=kent1397725003

24. Natarajan,V. Investigation on the crystal growth and Characterization of novel organic Non linear optical materials;.

Degree: 2014, Manonmaniam Sundaranar University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/27871

newline

Advisors/Committee Members: Arivanandhan,M.

Subjects/Keywords: Anisotropy; Benzophenone Crystal; Nlo Crystal; Nonius Cad 4 Mach 3 Diffractometer; Nonlinear Optics

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APA (6^th Edition):

Natarajan,V. (2014). Investigation on the crystal growth and Characterization of novel organic Non linear optical materials;. (Thesis). Manonmaniam Sundaranar University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/27871

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Natarajan,V. “Investigation on the crystal growth and Characterization of novel organic Non linear optical materials;.” 2014. Thesis, Manonmaniam Sundaranar University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/27871.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Natarajan,V. “Investigation on the crystal growth and Characterization of novel organic Non linear optical materials;.” 2014. Web. 20 Jan 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Natarajan,V. Investigation on the crystal growth and Characterization of novel organic Non linear optical materials;. [Internet] [Thesis]. Manonmaniam Sundaranar University; 2014. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/27871.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Natarajan,V. Investigation on the crystal growth and Characterization of novel organic Non linear optical materials;. [Thesis]. Manonmaniam Sundaranar University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/27871

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Not specified: Masters Thesis or Doctoral Dissertation

25. Marcos Benedito Caldas Costa. AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas.

Degree: PhD, 2013, Universidade Federal do Ceará

URL: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9147 ;

►

Neste trabalho, apresentamos uma anÃlise numÃrica para a obtenÃÃo de portas lÃgicas totalmente Ãptica baseada em um acoplador direcional nÃo-linear simÃtrico (NLDC) em fibras de… (more)

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Neste trabalho, apresentamos uma anÃlise numÃrica para a obtenÃÃo de portas lÃgicas totalmente Ãptica baseada em um acoplador direcional nÃo-linear simÃtrico (NLDC) em fibras de cristal fotÃnico (PCF). O projeto mais comumente usado para o NLDC-PCF Ã uma fibra holey, utilizada neste trabalho, em que a seÃÃo transversal Ã uma matriz periÃdica de buracos de ar que se prolonga por todo o comprimento da fibra, operando com dois pulsos de luz ultracurtos na forma de sÃlitons, de duraÃÃo mÃnima de 100fs (femtosegundos). Investigamos dois formatos de modulaÃÃo por pulsos, a modulaÃÃo por amplitude de pulso (PAM) na modalidade de chaveamento de mudanÃa de amplitude (ASK) e a modulaÃÃo por largura de pulso (PWM) para obter portas lÃgicas no NLDC-PCF duplo simÃtrico. Avaliamos o efeito resultante de um incremento no parÃmetro codificaÃÃo PAM (ε) e PWM (w), considerando a dispersÃo de segunda ordem (β2), a dispersÃo de terceira ordem (β3) e efeitos nÃo-lineares, tais como: SPM (Self Phase Modulation), SS (Self-Steepening) e IRS (lntrapulse Raman Scattering) em uma configuraÃÃo sem perdas. Os nossos resultados indicam que Ã possÃvel obter operaÃÃes lÃgicas utilizando um controle de fase entre os pulsos de entrada.

We present a numerical analysis for obtaining all-optical logic gates based on a nonlinear directional coupler symmetric (NLDC) based on photonic crystal fibers (PCF). The most commonly used to project the NLDC-PCF is a holey fiber, used here in cross section which is a periodic array of air holes extending through the length of the fiber, using two ultrashort light pulses in form of solitons, the minimum duration of 100fs (femtoseconds). We investigated two forms of modulation pulse, pulse amplitude modulation (PAM) in the form of amplitude shift keying (ASK) modulation and pulse width modulation (PWM) for logic gate NLDC-PCF symmetrical double. We evaluated the effect resulting from an increase in the offset parameter encoding PAM (ε) and PWM (w), considering the second order dispersion (β2), the third order dispersion (β3) and non-linear modulation effects SPM (Self Phase Modulation), SS (Self-Steepening) and IRS (lntrapulse Raman Scattering) in a configuration without loss. Our results indicate that logical operations can be obtained using a phase control between the input pulses.

Advisors/Committee Members: AntÃnio SÃrgio Bezerra Sombra.

Subjects/Keywords: TELECOMUNICACOES; Fibras Ãticas; TeleinformÃtica; photonic crystal fibers; nonlinear directional coupler; pulse amplitude modulation; pulse width modulation; logic gate

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Costa, M. B. C. (2013). AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas. (Doctoral Dissertation). Universidade Federal do Ceará. Retrieved from http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9147 ;

Chicago Manual of Style (16^th Edition):

Costa, Marcos Benedito Caldas. “AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas.” 2013. Doctoral Dissertation, Universidade Federal do Ceará. Accessed January 20, 2021. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9147 ;.

MLA Handbook (7^th Edition):

Costa, Marcos Benedito Caldas. “AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas.” 2013. Web. 20 Jan 2021.

Vancouver:

Costa MBC. AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas. [Internet] [Doctoral dissertation]. Universidade Federal do Ceará 2013. [cited 2021 Jan 20]. Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9147 ;.

Council of Science Editors:

Costa MBC. AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas. [Doctoral Dissertation]. Universidade Federal do Ceará 2013. Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9147 ;

26. Cabaret, Jérémy. Propagation acoustique non linéaire dans des chaines granulaires magnétiques : ondes de rotation et effets phononiques : Nonlinear acoustic propagation in magnetic granular chains : torsional waves and phononic processes.

Degree: Docteur es, Acoustique, 2014, Le Mans

URL: http://www.theses.fr/2014LEMA1028

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Ce travail de recherche est une contribution à l'étude de la propagation d'ondes élastiques dans les milieux granulaires. L'objectif principal est d'analyser deux aspects particuliers… (more)

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Ce travail de recherche est une contribution à l'étude de la propagation d'ondes élastiques dans les milieux granulaires. L'objectif principal est d'analyser deux aspects particuliers qui influencent la propagation, d'une part le degré de liberté en rotation des grains et d'autre part les non-linéarités de contact. Dans le cadre de ce travail, des structures granulaires périodiques et unidimensionnelles sont étudiées.L'apport principal de ce travail est la mise en évidence expérimentale et la modélisation d'ondes de rotation pures dans une chaîne granulaire composée de billes magnétiques. Le point de départ de la modélisation est la description du contact en torsion entre deux sphères jusqu'au premier ordre de non-linéarité. Pour un moment de torsion oscillant, il est montré un comportement de type purement hystérétique quadratique. Généralement, cette non-linéarité coexiste avec d'autres types de non-linéarités (quadratique, clappement, ...) et certains de ses effets n'ont jamais été observés. Pour la première fois, la distorsion d'ondes impulsionnelles par une non-linéarité hystérétique est mise en évidence et modélisée.D'autres effets liés à la dispersion et aux non-linéarités de contact dans une chaîne diatomique sont étudiés théoriquement et expérimentalement. En particulier, la génération de l'harmonique 2 des ondes de compression présente une richesse intéressante selon leur caractère propagatif, fortement dispersif ou évanescent.Outre les apports fondamentaux, les résultats obtenus peuvent trouver des applications dans le domaine du contrôle des ondes : filtres acoustiques dépendant de l'amplitude, convertisseurs de fréquences, rectificateurs et diodes acoustiques, ... .

This research is a contribution to the study of the propagation of elastic waves in granular media. The main purpose is to analyze two particular aspects that influence the propagation, first the rotation motion of grain and other nonlinearities of contact. As part of this work, the periodic one-dimensional granular structure is studied. The main contribution of this work is the experimental demonstration and modeling purely rotational wave in a granular chain composed of magnetic beads. The starting point of modeling is the description of the pure shear coupling at the contact between two spheres excited in torsion up to the first order of nonlinearity. For a oscillating torque, pure nonlinear quadratic hysteretic behaviour is shown. Generally, this nonlinearity coexists with other types of nonlinearities (quadratic, clapping, ...) and some of its effects have not been observed. For the first time, the transformation of pulse profile in a medium with pure hysteretic quadratic nonlinearity, essentially different from the distortion by classical nonlinearities, is reported.Other effects related to the dispersion and nonlinearity of contact in a diatomic chain are studied theoretically and experimentally. In particular, the generation of the 2nd harmonic wave compression presents an interesting behaviour according to their propagating…

Advisors/Committee Members: Tournat, Vincent (thesis director).

Subjects/Keywords: Acoustique non linéaire; Milieu granulaire; Ondes de rotation; Cristal phononique; Nonlinear acoustics; Granular media; Rotational wave; Phononic crystal; 534.22

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cabaret, J. (2014). Propagation acoustique non linéaire dans des chaines granulaires magnétiques : ondes de rotation et effets phononiques : Nonlinear acoustic propagation in magnetic granular chains : torsional waves and phononic processes. (Doctoral Dissertation). Le Mans. Retrieved from http://www.theses.fr/2014LEMA1028

Chicago Manual of Style (16^th Edition):

Cabaret, Jérémy. “Propagation acoustique non linéaire dans des chaines granulaires magnétiques : ondes de rotation et effets phononiques : Nonlinear acoustic propagation in magnetic granular chains : torsional waves and phononic processes.” 2014. Doctoral Dissertation, Le Mans. Accessed January 20, 2021. http://www.theses.fr/2014LEMA1028.

MLA Handbook (7^th Edition):

Cabaret, Jérémy. “Propagation acoustique non linéaire dans des chaines granulaires magnétiques : ondes de rotation et effets phononiques : Nonlinear acoustic propagation in magnetic granular chains : torsional waves and phononic processes.” 2014. Web. 20 Jan 2021.

Vancouver:

Cabaret J. Propagation acoustique non linéaire dans des chaines granulaires magnétiques : ondes de rotation et effets phononiques : Nonlinear acoustic propagation in magnetic granular chains : torsional waves and phononic processes. [Internet] [Doctoral dissertation]. Le Mans; 2014. [cited 2021 Jan 20]. Available from: http://www.theses.fr/2014LEMA1028.

Council of Science Editors:

Cabaret J. Propagation acoustique non linéaire dans des chaines granulaires magnétiques : ondes de rotation et effets phononiques : Nonlinear acoustic propagation in magnetic granular chains : torsional waves and phononic processes. [Doctoral Dissertation]. Le Mans; 2014. Available from: http://www.theses.fr/2014LEMA1028

Anna University

27. Dhanaraj P V. Investigations on growth and characterization of nonlinear optical single crystals of 2 Aminopyridine and Glycine Derivatives doped KDP and ADP;.

Degree: Growth and characterization of nonlinear optical single crystals, 2013, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/10573

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The search for new advanced materials is an important area of contemporary research in numerous disciplines of science and development of many new technologies. Nonlinear… (more)

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The search for new advanced materials is an important area of contemporary research in numerous disciplines of science and development of many new technologies. Nonlinear optical (NLO) crystals have been a great deal of interest in recent years due to their potential applications in the domain of optoelectronics and photonic technologies. The thesis consists of nine chapters discussing important and interesting issues in relation to growth and characterization of NLO crystals. A brief introduction to various growth methods with emphasis on low temperature solution growth and an overview on NLO crystals with their characteristics has been presented in detail. The single crystal growth of organic bis(2-aminopyridinium) maleate (B2AM) by low temperature solution growth method and their characterization analysis are discussed. Crystalline perfection of the as grown single crystal was studied through high-resolution X-ray diffraction (HRXRD) analysis. Dielectric measurements indicate that B2AM crystal has low values of dielectric constant and dielectric loss. The cutoff wavelength of B2AM at 354 nm is revealed by the optical transmission studies. Presence of various functional groups was identified by FTIR spectrum analysis.The studies on semiorganic NLO single crystals of tris(glycine) calcium(II) dichloride (TGCC) is presented. HRXRD analysis shows that crystalline perfection of TGCC crystals is quite good. Thermal studies of TGCC were determined. The SHG relative efficiency of TGCC is 1.5 times that of KDP. The reverse indentation size effect on the (001) plane of TGCC crystal was identified by mechanical studies.The growth of potassium carbonate doped KDP crystals in different molar ratios is discussed. It was observed that measured SHG efficiency and piezoelectric coefficient of doped ADP crystals are higher than that of pure ADP crystal. The summary of the present investigations and suggestions for future research activities are presented. newline

None

Advisors/Committee Members: Rajesh, N.P..

Subjects/Keywords: Nonlinear optical single crystal; 2-aminopyridine; glycine derivatives; high resolution x-ray diffraction; tris(glycine) calcium dichloride

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

V, D. P. (2013). Investigations on growth and characterization of nonlinear optical single crystals of 2 Aminopyridine and Glycine Derivatives doped KDP and ADP;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/10573

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

V, Dhanaraj P. “Investigations on growth and characterization of nonlinear optical single crystals of 2 Aminopyridine and Glycine Derivatives doped KDP and ADP;.” 2013. Thesis, Anna University. Accessed January 20, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/10573.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

V, Dhanaraj P. “Investigations on growth and characterization of nonlinear optical single crystals of 2 Aminopyridine and Glycine Derivatives doped KDP and ADP;.” 2013. Web. 20 Jan 2021.

Vancouver:

V DP. Investigations on growth and characterization of nonlinear optical single crystals of 2 Aminopyridine and Glycine Derivatives doped KDP and ADP;. [Internet] [Thesis]. Anna University; 2013. [cited 2021 Jan 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/10573.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

V DP. Investigations on growth and characterization of nonlinear optical single crystals of 2 Aminopyridine and Glycine Derivatives doped KDP and ADP;. [Thesis]. Anna University; 2013. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/10573

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

28. Kim, Jae Hun. BROADBAND SUPERCONTINUUM GENERATION IN SAPPHIRE FIBERS AND APPLICATIONS .

Degree: 2008, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/8915

► In this thesis, supercontinuum generations in sapphire fibers under various conditions are investigated, and their corresponding effects are analyzed. Main motivation to use sapphire fibers… (more)

▼ In this thesis, supercontinuum generations in sapphire fibers under various conditions are investigated, and their corresponding effects are analyzed. Main motivation to use sapphire fibers as optical media for supercontinuum generation is that they have characteristics of good transparency in mid-IR, high laser damage threshold, and high melting temperature compared to conventionally utilized fibers including silica-based fibers and infrared fibers. As an introductory step, the general theories of supercontinuum generation including derivation of Schrödinger equation and explanation of various nonlinear effects are covered. Also, laser systems including a femtosecond laser system and an optical parametric amplifier in our lab are explained since they are key equipments for most experiments performed in this thesis. Sapphire fibers are pumped at various wavelengths to verify their ability to generate supercontinuum in wide wavelength regions since they are known to be transparent from visible to 4~5m. Since nonlinearity, dispersion, and fiber length play important roles on nonlinear interactions in sapphire fibers, corresponding nonlinear effects are also investigated and explained. The core diameter of sapphire fibers we used for experiments is quite large that its nonlinear coefficient inversely proportional to mode area is quite small even though its nonlinear refractive index is comparable to silica fiber. To overcome small nonlinear coefficient due to large mode area, sapphire fibers are pumped by three pumping sources to have very wide spectrum ranged from UV to mid-IR region, which can be predicted by the superposition of three different spectra. As application purposes, experiments of IR spectroscopy and remote sensing are performed. Finally, several future works to solidify this thesis are discussed. Advisors/Committee Members: Shizhuo Yin, Committee Chair/Co-Chair, Zhiwen Liu, Committee Member, James Kenneth Breakall, Committee Member, Zi Kui Liu, Committee Member.

Subjects/Keywords: nonlinear fiber optics; single crystal sapphire fiber; Supercontinuum

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kim, J. H. (2008). BROADBAND SUPERCONTINUUM GENERATION IN SAPPHIRE FIBERS AND APPLICATIONS . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/8915

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kim, Jae Hun. “BROADBAND SUPERCONTINUUM GENERATION IN SAPPHIRE FIBERS AND APPLICATIONS .” 2008. Thesis, Penn State University. Accessed January 20, 2021. https://submit-etda.libraries.psu.edu/catalog/8915.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kim, Jae Hun. “BROADBAND SUPERCONTINUUM GENERATION IN SAPPHIRE FIBERS AND APPLICATIONS .” 2008. Web. 20 Jan 2021.

Vancouver:

Kim JH. BROADBAND SUPERCONTINUUM GENERATION IN SAPPHIRE FIBERS AND APPLICATIONS . [Internet] [Thesis]. Penn State University; 2008. [cited 2021 Jan 20]. Available from: https://submit-etda.libraries.psu.edu/catalog/8915.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kim JH. BROADBAND SUPERCONTINUUM GENERATION IN SAPPHIRE FIBERS AND APPLICATIONS . [Thesis]. Penn State University; 2008. Available from: https://submit-etda.libraries.psu.edu/catalog/8915

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Edinburgh

29. Tope, Bryan Keith. Controlling optical beams in nematic liquid crystals.

Degree: PhD, 2018, University of Edinburgh

URL: http://hdl.handle.net/1842/29634

► A major area of research recently has been the study of nonlinear waves in liquid crystals. The availability of commercial liquid crystals and the formation… (more)

▼ A major area of research recently has been the study of nonlinear waves in liquid crystals. The availability of commercial liquid crystals and the formation of solitons at mWpower levels has meant that experimental research and the need to understand how the solitons are formed and interact has been boosted. The first part of the thesis looks at how two laser beams in a nematic liquid crystal interact. Specifically research has centred on the problem of directing a signal beam to a target area by varying the input angle of the control beam. Different approximate models are developed to describe this phenomena, with the results from these models compared to a full numerical analysis. The first model developed is called the particle model and is based on the unmodified modulation equations. The results from this model were acceptable when compared with the results obtained from a full numerical analysis. This comparison is indicative that the underlying assumptions of the model did not capture an essential part of interaction between the two laser beams. The second model used to describe the interaction between the two laser beams was based on the law of conservation of momentum in the laser beams. Here the potential between the laser beams was modified to take into account the profile of the beams. The results from this model were in excellent agreement with results from the full numerical analysis, showing the key role potential between the beams plays in the trajectories of the beams. The interaction between dark solitons was also studied. The model used in this case was based on the modulation equations with a suitable trial function for dark solitons. The results from this model were in excellent agreement with the results from the full numerical analysis. The behaviour of the dark solitons shown by the approximate model and the full numerical analysis showing similar key features. This thesis sets out the equations describing the interaction of laser beams in liquid crystals. These are the equations used to carry out a full numerical analysis. This analysis is valuable in its own right and is the standard to compare the results obtained from other models but to achieve a deeper understanding of how laser beams interact in liquid crystals approximate models are developed so that the important parameters in each model can be identified. The Lagrangian describing the interaction of laser beams in liquid crystals is used in all the approximate models. The approximate models can then be developed through the use of suitable trial functions that adequately describe how the laser beams interact. The derivation of the equations and how these equations are solved is described for each model. The results from each model are compared to a full numerical analysis with a discussion of how the results compare.

Subjects/Keywords: 530.4; nonlinear waves; liquid crystals; solitons; nematic liquid crystal; particle model; conservation of momentum; laser beams; dark solitons; models

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tope, B. K. (2018). Controlling optical beams in nematic liquid crystals. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/29634

Chicago Manual of Style (16^th Edition):

Tope, Bryan Keith. “Controlling optical beams in nematic liquid crystals.” 2018. Doctoral Dissertation, University of Edinburgh. Accessed January 20, 2021. http://hdl.handle.net/1842/29634.

MLA Handbook (7^th Edition):

Tope, Bryan Keith. “Controlling optical beams in nematic liquid crystals.” 2018. Web. 20 Jan 2021.

Vancouver:

Tope BK. Controlling optical beams in nematic liquid crystals. [Internet] [Doctoral dissertation]. University of Edinburgh; 2018. [cited 2021 Jan 20]. Available from: http://hdl.handle.net/1842/29634.

Council of Science Editors:

Tope BK. Controlling optical beams in nematic liquid crystals. [Doctoral Dissertation]. University of Edinburgh; 2018. Available from: http://hdl.handle.net/1842/29634

University of Western Ontario

30. Wijesekara, Himasha. Effects of Impurities on Calcium Oxalate Crystallization as Measured by Atomic Force Microscopy.

Degree: 2019, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/6785

► Calcium oxalate crystals are found in kidney stones as either calcium oxalate monohydrate (COM) or calcium oxalate dihydrate (COD). COM crystals are the most abundant… (more)

▼ Calcium oxalate crystals are found in kidney stones as either calcium oxalate monohydrate (COM) or calcium oxalate dihydrate (COD). COM crystals are the most abundant form as they are thermodynamically more stable than COD crystals under physiological conditions. Certain aspartic acid-rich molecules such as osteopontin (OPN) are known to affect stone formation by inhibiting COM and COD growth. We have studied COM {010} and COD {100} faces in the presence of OPN, poly-aspartic acid (poly-ASP) and synthetic peptides derived from OPN to investigate the inhibitor mechanism. We observed that poly-ASP preferentially inhibits one particular direction of {010} faces on COM crystals, creating “finger-like” features, while growth continues in other directions. We find that these features appear at a threshold concentration of poly-ASP that varies with the length of the polymer. Attempts to model the threshold concentration suggest that this is due to a competition between adsorption of polymer to already-pinned steps and removal of poly-ASP by desorption and possibly coverage by advancing steps between strongly pinned steps. Growth of {100} faces of COD crystals in the presence of synthetic peptides derived from OPN with different iso-electric points displayed varying levels of inhibition. The two principal directions of the elongated elliptical hillocks on {100} faces were inhibited to different degrees by the peptides. This preferential inhibition is most likely the result of different Ca2+ ion densities and structures of the two different step directions. The effects of imaging on the growth itself were studied for the case of COM growth in the presence of OPN. In the presence of OPN molecules, a continuously-scanned area showed faster growth relative to a larger area scanned less frequently. This enhanced vertical growth in the continuously-scanned area was found to vary with the OPN concentration and calcium oxalate supersaturation. We modeled this effect using a modified version of the Cabrera-Vermilyea model (1958), in which steps are pinned by adsorbed impurities, resulting in a decreased propagation speed due to the resulting curvature. In our case, we assume adsorption directly to steps, rather than to terraces as in the Cabrera-Vermilyea model.

Subjects/Keywords: Calcium oxalate monohydrate; Atomic force microscope; Osteopontin; crystal growth; inhibition; kidney stones; Condensed Matter Physics; Statistical, Nonlinear, and Soft Matter Physics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wijesekara, H. (2019). Effects of Impurities on Calcium Oxalate Crystallization as Measured by Atomic Force Microscopy. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/6785

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wijesekara, Himasha. “Effects of Impurities on Calcium Oxalate Crystallization as Measured by Atomic Force Microscopy.” 2019. Thesis, University of Western Ontario. Accessed January 20, 2021. https://ir.lib.uwo.ca/etd/6785.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wijesekara, Himasha. “Effects of Impurities on Calcium Oxalate Crystallization as Measured by Atomic Force Microscopy.” 2019. Web. 20 Jan 2021.

Vancouver:

Wijesekara H. Effects of Impurities on Calcium Oxalate Crystallization as Measured by Atomic Force Microscopy. [Internet] [Thesis]. University of Western Ontario; 2019. [cited 2021 Jan 20]. Available from: https://ir.lib.uwo.ca/etd/6785.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wijesekara H. Effects of Impurities on Calcium Oxalate Crystallization as Measured by Atomic Force Microscopy. [Thesis]. University of Western Ontario; 2019. Available from: https://ir.lib.uwo.ca/etd/6785

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations