Electromagnetic metamaterials are artificially fabricated structures that exhibit properties unattainable in naturally occurring materials, such as negative index, epsilon-near-zero, ultra-high index, perfect lensing, and cloaking. Since their inception, metallic unit cells have dominated the field of metamaterials. However, metallic unit cells suffer from conduction loss, magnetic saturation at high frequencies, often exhibit an anisotropic optical response, and require expensive lithography methods for fabrication. Recently, there has been burgeoning interest in exploiting the Mie resonances in high index dielectric particles to design all-dielectric metamaterials, which not only have much less absorption losses at optical frequencies than their metallic counterparts but also provide the potential for achieving isotropic optical responses due to their simple unit cell geometry. The main motivation of this dissertation is two fold - first, to understand how electric and magnetic Mie resonances in dielectric particles can be used to design metamaterials exhibiting novel and unique optical properties; and second, to experimentally realize metamaterials using nanofabrication techniques, with a strong motivation towards achieving three dimensional and large scale metamaterials .
| Identifer | oai:union.ndltd.org:VANDERBILT/oai:VANDERBILTETD:etd-07172015-161057 |
| Date | 24 July 2015 |
| Creators | Moitra, Parikshit |
| Contributors | Richard F. Haglund Jr., Sharon M. Weiss, Jason G. Valentine, Norman H. Tolk, Deyu Li |
| 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-07172015-161057/ |
| Rights | restrictone, 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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