Gallium arsenide and other III-V materials are well known for their excellent optical and electronic properties and have led to the development of high-performance optoelectronics. Several combinations of III-V semiconductors are now being considered as potentially attractive alternatives to silicon for these applications. However, further development requires fundamental understanding of processes that govern light-matter interactions. Specifically, surface strain and ultrafast dynamics are of great interest to the optoelectronic industry.
The research of this dissertation represents an initial exploration of the factors influencing nonlinear optical responses on semiconductor surfaces. The results of this research have the potential to inform the field of nonlinear optics about which lattice behaviors are most likely to contribute to static and transient second harmonic generation (SHG). This information allows for future work to focus on the connection between SHG, dipole contributions, and interatomic potentials in semiconductors under different conditions. This research also provides information about whether strain, resonances, and subpicosecond lattice behaviors can be fit with a simple analytical solution. The results of this research reveal that an analytical fit of polarization-resolved SHG is sensitive to interatomic potential and dipole variations in all three dimensions simultaneously.
| Identifer | oai:union.ndltd.org:VANDERBILT/oai:VANDERBILTETD:etd-03272017-101528 |
| Date | 07 April 2017 |
| Creators | Garnett, Joy |
| Contributors | Norman H. Tolk, Ph.D., Jim Davidson, Ph.D., David J. Ernst, Ph.D., Kalman Varga, Ph.D., Timothy P. Hanusa, Ph.D. |
| Publisher | VANDERBILT |
| Source Sets | Vanderbilt University Theses |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.library.vanderbilt.edu/available/etd-03272017-101528/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Vanderbilt University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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