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Proceedings Paper

Tunable VO2/Au hyperbolic metamaterial (Presentation Recording)
Author(s): Srujana Prayakarao; Brock Mendoza; Andrew Devine; Chan Kyaw; Robert B. Van Dover; Mikhail A. Noginov; Vladimir Liberman

Paper Abstract

Vanadium oxide (VO2) is known to undergo a semiconductor-to-metal transition at 68°C. Therefore, it can be used as a tunable component of an active metamaterial. The lamellar metamaterial designed and studied in this work is composed of subwavelength VO2 and Au layers and is predicted to have the temperature controlled transition from the hyperbolic phase to the metallic phase. The VO2 films and VO2/Au lamellar metamaterial stacks have been fabricated and studied in the electrical conductivity as well as optical (transmission, reflection) experiments. The temperature depended changes in the absorption and transmission spectra of metamaterials and films have been observed experimentally and compared with the theory predictions.

Paper Details

Date Published: 5 October 2015
PDF: 1 pages
Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 95440V (5 October 2015); doi: 10.1117/12.2190370
Show Author Affiliations
Srujana Prayakarao, Norfolk State Univ. (United States)
Brock Mendoza, Cornell Univ. (United States)
Norfolk State Univ. (United States)
Andrew Devine, Cornell Univ. (United States)
Norfolk State Univ. (United States)
Chan Kyaw, Morehouse College (United States)
Norfolk State Univ. (United States)
Robert B. Van Dover, Cornell Univ. (United States)
Mikhail A. Noginov, Norfolk State Univ. (United States)
Vladimir Liberman, MIT Lincoln Lab. (United States)


Published in SPIE Proceedings Vol. 9544:
Metamaterials, Metadevices, and Metasystems 2015
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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