Enhanced optical pump-terahertz probe nonlinearity by nano antenna patterning

S. B. Choi, J. S. Kyoung, M. A. Seo, H. S. Kim, H. R. Park, Bong Jun Kim, Hyun Tak Kim, K. J. Ahn, D. S. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We demonstrate that nanoresonators on a vanadium dioxide (VO2) thin film help amplify the available optical pump-terahertz probe transmission nonlinearity when the VO2 film undergoes insulator-metal phase transition. By virtue of subpicosecond time scale of VO2 phase transition, dramatically enhanced ultrafast control of THz transmission is enabled by moderate optical pump. This is compared to bare VO2 films where no switching dynamics are observed under similar conditions.

Original languageEnglish (US)
Title of host publicationConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011
Pages453-454
Number of pages2
StatePublished - Dec 1 2011
EventConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011 - Sydney, Australia
Duration: Aug 28 2011Sep 1 2011

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011
CountryAustralia
CitySydney
Period8/28/119/1/11

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