Giant nonlinear processes in plasmonic metasurfaces

Juan Sebastian Gomez Diaz, J. Lee, M. Tymchenko, M. A. Belkin, A. Alu

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

2 Scopus citations

Abstract

Nonlinear metasurfaces based on coupling locally-enhanced plasmonic response to intersubband transitions of multi-quantum-wells have recently provided second-order susceptibilities several orders of magnitude larger than any other non-linear flat structure measured so far. Here, we demonstrate that a proper design of the plasmonic metasurface inclusions can dramatically enhance the overall non-linear response of the structure. The optimized metasurfaces are then applied to achieve efficient second-harmonic generation (SHG) and differential frequency generation (DFG) in the infrared and terahertz frequency bands, respectively. In case of low-power impinging beams (≈1W), our simulations predict large conversion efficiencies of around 0.8% and 0.01% for SHG and DFG, outperforming previously reported efficiencies in 1-2 orders magnitude and confirming the suitability of this type of plasmonic metasurfaces as a highly-efficient flat platform for non-linear photonics.

Original languageEnglish (US)
Title of host publication2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1084-1085
Number of pages2
Volume2015-October
ISBN (Electronic)9781479978151
DOIs
StatePublished - Oct 22 2015
Externally publishedYes
EventIEEE Antennas and Propagation Society International Symposium, APS 2015 - Vancouver, Canada
Duration: Jul 19 2015Jul 24 2015

Other

OtherIEEE Antennas and Propagation Society International Symposium, APS 2015
CountryCanada
CityVancouver
Period7/19/157/24/15

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Gomez Diaz, J. S., Lee, J., Tymchenko, M., Belkin, M. A., & Alu, A. (2015). Giant nonlinear processes in plasmonic metasurfaces. In 2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings (Vol. 2015-October, pp. 1084-1085). [7304930] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APS.2015.7304930