Giant nonlinear processes in plasmonic metasurfaces

J. S. Gomez-Diaz, J. Lee, M. Tymchenko, M. A. Belkin, A. Alu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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
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
ISBN (Electronic)9781479978151
DOIs
StatePublished - 22 Oct 2015
Externally publishedYes
EventIEEE Antennas and Propagation Society International Symposium, APS 2015 - Vancouver, Canada
Duration: 19 Jul 201524 Jul 2015

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume2015-October
ISSN (Print)1522-3965

Conference

ConferenceIEEE Antennas and Propagation Society International Symposium, APS 2015
Country/TerritoryCanada
CityVancouver
Period19/07/1524/07/15

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