Time-reversal asymmetric nonlinear metasurface

Sergejs Boroviks; Andrei Kiselev; Karim Achouri; Olivier J. F. Martin

doi:10.1117/12.2671791

8 June 2023 Time-reversal asymmetric nonlinear metasurface

Sergejs Boroviks, Andrei Kiselev, Karim Achouri, Olivier J. F. Martin

Proceedings Volume PC12569, Nonlinear Optics and Applications XIII; (2023) https://doi.org/10.1117/12.2671791
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Abstract

We demonstrate experimentally a nonlinear plasmonic metasurface that exhibits strongly asymmetric second-harmonic generation (SHG), depending on the illuminating direction: when the metasurface is illuminated from one side, it produces a significant SHG signal, whilst this nonlinear response is strongly reduced (approx. 10 dB), upon illumination from the opposite side. This surprising behavior stems from the bianisotropic response of the system, as confirmed by a homogenization analysis and the extraction of the effective susceptibility tensor. At first sight, it could be tempting to interpret this asymmetric response as a non-reciprocal phenomenon, but we will show that actually it is time-reversal asymmetric.

Conference Presentation

Citation Download Citation

Sergejs Boroviks, Andrei Kiselev, Karim Achouri, and Olivier J. F. Martin "Time-reversal asymmetric nonlinear metasurface", Proc. SPIE PC12569, Nonlinear Optics and Applications XIII, (8 June 2023); https://doi.org/10.1117/12.2671791

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