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:

Sorted by: relevance · author · university · dateNew search

You searched for +publisher:"University of New Mexico" +contributor:("Aceves, Alejandro"). Showing records 1 – 2 of 2 total matches.

Search Limiters

Last 2 Years | English Only

No search limiters apply to these results.

▼ Search Limiters


University of New Mexico

1. Sukhinin, Alexey. Propagation of intense UV filaments and vortices.

Degree: Mathematics & Statistics, 2012, University of New Mexico

The goal of this dissertation is to investigate the propagation of ultrashort high intensity UV laser pulses of order of nanoseconds in atmosphere. It is believed that they have a potential for stable and diffractionless propagation over the extended distances. Consequently, it creates a new array of applications in areas of communication, sensing, energy transportation and others. The theoretical model derived from Maxwell's equations represents unidirectional envelope propagation and plasma creation equations. It was shown numerically through Newton's iterations that the stationary model permits the localized fundamental and vortex solutions. Discussion of the stability of steady states involves different approaches and their limitations. Finally, model equations are integrated numerically to study the dynamics of the beams in the stationary model as well as nanosecond pulses in the full (3+1)D model using parallel computation. Advisors/Committee Members: Aceves, Alejandro, Diels, Jean-Claude, Lau, Stephen, Lushnikov, Pavel.

Subjects/Keywords: Laser pulses; Ultrashort – Mathematical models; High power lasers – Mathematical models; Ultraviolet radiation – mathematical models.

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Sukhinin, A. (2012). Propagation of intense UV filaments and vortices. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/17508

Chicago Manual of Style (16th Edition):

Sukhinin, Alexey. “Propagation of intense UV filaments and vortices.” 2012. Doctoral Dissertation, University of New Mexico. Accessed December 09, 2019. http://hdl.handle.net/1928/17508.

MLA Handbook (7th Edition):

Sukhinin, Alexey. “Propagation of intense UV filaments and vortices.” 2012. Web. 09 Dec 2019.

Vancouver:

Sukhinin A. Propagation of intense UV filaments and vortices. [Internet] [Doctoral dissertation]. University of New Mexico; 2012. [cited 2019 Dec 09]. Available from: http://hdl.handle.net/1928/17508.

Council of Science Editors:

Sukhinin A. Propagation of intense UV filaments and vortices. [Doctoral Dissertation]. University of New Mexico; 2012. Available from: http://hdl.handle.net/1928/17508


University of New Mexico

2. Plis, Elena A. Mid-IR type-II InAs/GaSb nanoscale superlattice sensors.

Degree: Electrical and Computer Engineering, 2007, University of New Mexico

The detection of mid-wavelength infrared radiation (MWIR) is very important for many military, industrial and biomedical applications. Present-day commercially available uncooled IR sensors operating in MWIR region (2-5μm) use microbolometric detectors which are inherently slow. Available photon detectors (mercury cadmium telluride (MCT), bulk InSb and quantum well infrared detectors (QWIPs))overcome this limitation. However, there are some fundamental issues decreasing their performance and ability for high temperature operation, including fast Auger recombination rates and high thermal generation rate. These detectors operate at low temperatures (77K-200K) in order to obtain high signal to noise ratio. The requirement of cooling limits the lifetime, increases the weight and the total cost, as well as the power budget, of the whole infrared system. In recent years, InAs/GaSb superlattice based detectors have appeared as an interesting alternative to the present-day IR detector systems. These heterostructures have a type-II band alignment such that the conduction band of InAs layer is lower than the valence band of GaSb layer. The effective bandgap of these structures can be adjusted from 0.4 eV to values below 0.1 eV by varying the thickness of constituent layers leading to an enormous range of detector cutoff wavelengths (3-30μm). The InAs/GaSb SLs have a higher degree of uniformity than the MCT alloys, making them attractive for large area focal plane arrays. They provide a smaller leakage current due to larger effective electron mass, which suppresses tunneling. This material system is also characterized by high operating temperatures and long Auger recombination rates. This suggests the potential for using the SLs technology for realizing high operating temperature devices. This work is focused on the development of mid-IR InAs/GaSb SLs sensors with high-operating temperature. Contributions of this thesis include 1) development of growth and processing procedure for the n-on-p and p-on-n design of SL detectors leading to improved detector performance, 2) careful evaluation of characteristics of SL detectors, 3) methods of reduction of surface component of dark current passivation techniques). Advisors/Committee Members: Krishna, Sanjay, Aceves, Alejandro, Stintz, Andreas, Huffaker, Diana.

Subjects/Keywords: Infrared detectors – Materials; Superlattices as materials

Record DetailsSimilar RecordsGoogle PlusoneFacebookTwitterCiteULikeMendeleyreddit

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

APA (6th Edition):

Plis, E. A. (2007). Mid-IR type-II InAs/GaSb nanoscale superlattice sensors. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/3282

Chicago Manual of Style (16th Edition):

Plis, Elena A. “Mid-IR type-II InAs/GaSb nanoscale superlattice sensors.” 2007. Doctoral Dissertation, University of New Mexico. Accessed December 09, 2019. http://hdl.handle.net/1928/3282.

MLA Handbook (7th Edition):

Plis, Elena A. “Mid-IR type-II InAs/GaSb nanoscale superlattice sensors.” 2007. Web. 09 Dec 2019.

Vancouver:

Plis EA. Mid-IR type-II InAs/GaSb nanoscale superlattice sensors. [Internet] [Doctoral dissertation]. University of New Mexico; 2007. [cited 2019 Dec 09]. Available from: http://hdl.handle.net/1928/3282.

Council of Science Editors:

Plis EA. Mid-IR type-II InAs/GaSb nanoscale superlattice sensors. [Doctoral Dissertation]. University of New Mexico; 2007. Available from: http://hdl.handle.net/1928/3282

.