Advanced search options

Advanced Search Options 🞨

Browse by author name (“Author name starts with…”).

Find ETDs with:

in
/  
in
/  
in
/  
in

Written in Published in Earliest date Latest date

Sorted by

Results per page:

You searched for subject:(polarizing beam splitter). One record found.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


NSYSU

1. Chou, Pei-chieh. Photo-Switchable Polarizing Beam Splitter based on Dye-Doped Liquid Crystals.

Degree: Master, Electro-Optical Engineering, 2014, NSYSU

Polarizing beam splitters (PBSs) split the orthogonal s and p polarizations of the incident light. They are of considerable importance in many optical systems including liquid crystal displays (LCDs), optical communications and optical storage devices. In this study, we aimed to design an active PBS by sandwiching a dye-doped liquid crystal thin layer (ne = 1.7126; no = 1.5287) between two high-index prisms (nprism = 1.778). The working principle of PBS is as follows: As a ray of light propagates from an optically denser medium to a rarer one at an angle larger than a particular critical angle, it is entirely reflected. Such phenomenon is called âtotal internal reflectionâ. The birefringence nature of the liquid crystal leads to different critical angles for s-wave and p-wave respectively. Thereby, at a certain angle, the incident light will be divided into two rays with different linear polarizations. In conjunction with an azobenzene dye, the orientational order of the liquid crystal can be optically controlled and so can the effective indices. Under violet irradiation (λ = 404 nm), the azo-dye 1205 experiences an isothermal transition from trans- to cis-state resulting in a phase transition from the nematic to isotropic state; whereas the back-isomerization process can be exerted by green irradiation (λ = 532 nm). Such switching is reversible and bistable. Hence, a photo-switchable and energy-conserving PBS was demonstrated. Moreover, this device can be locally addressed by a spatially modulated pump, which simplifies and enriches the design for further applications. Advisors/Committee Members: Kuang-Yao Lo (chair), Wei Lee (chair), Chi-Yen Huang (chair), Andy Ying-Guey, Fuh (chair), Tsung-Hsien Lin (committee member).

Subjects/Keywords: liquid crystal; photo-switchable; total internal reflection; polarizing beam splitter; azo-dye

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Chou, P. (2014). Photo-Switchable Polarizing Beam Splitter based on Dye-Doped Liquid Crystals. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-224909

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

Chicago Manual of Style (16th Edition):

Chou, Pei-chieh. “Photo-Switchable Polarizing Beam Splitter based on Dye-Doped Liquid Crystals.” 2014. Thesis, NSYSU. Accessed December 07, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-224909.

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

MLA Handbook (7th Edition):

Chou, Pei-chieh. “Photo-Switchable Polarizing Beam Splitter based on Dye-Doped Liquid Crystals.” 2014. Web. 07 Dec 2019.

Vancouver:

Chou P. Photo-Switchable Polarizing Beam Splitter based on Dye-Doped Liquid Crystals. [Internet] [Thesis]. NSYSU; 2014. [cited 2019 Dec 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-224909.

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

Council of Science Editors:

Chou P. Photo-Switchable Polarizing Beam Splitter based on Dye-Doped Liquid Crystals. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718114-224909

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

.