Presentation
10 March 2020 Mixed order nonlinear frequency mixing from metasurfaces of multi-resonant gold antennas (Conference Presentation)
Rupert F. Oulton, Sylvain D. Gennaro, Paul Dichtl, Stefan A. Maier
Author Affiliations +
Proceedings Volume 11290, High Contrast Metastructures IX; 1129008 (2020) https://doi.org/10.1117/12.2546293
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
We report metasurfaces capable of multiple frequency mixing processes of mixed nonlinear order. The metasurfaces are composed of multi-resonant metallic antennas and show prominent second harmonics, third harmonics, sum frequency generation and four-wave mixing. We report on their intrinsic efficiencies, which are surprisingly high, but with extrinsic efficiencies limited by material damage threshold due to heating. We use these wave mixers to demonstrate characterization of two unknown optical pulses at the pico-Joule level. We also explore the use of the Pancharatnam-Berry phase to control the nonlinear phase over a metasurface. This study reveals the important role that higher order multipoles play in nonlinear metasurfaces.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rupert F. Oulton, Sylvain D. Gennaro, Paul Dichtl, and Stefan A. Maier "Mixed order nonlinear frequency mixing from metasurfaces of multi-resonant gold antennas (Conference Presentation)", Proc. SPIE 11290, High Contrast Metastructures IX, 1129008 (10 March 2020); https://doi.org/10.1117/12.2546293
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KEYWORDS
Antennas

Gold

Crystals

Nonlinear crystals

Second-harmonic generation

Laser damage threshold

Metals

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