Enhanced Two-Photon Absorption Effect of a Fano Resonant Silicon Metasurface

Hailun Xie; Lili Gui; Yiwen Liu; Fengbin Lin; Kun Xu

doi:10.1364/CLEO_AT.2023.JW2A.84

CLEO 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper JW2A.84
•https://doi.org/10.1364/CLEO_AT.2023.JW2A.84

Enhanced Two-Photon Absorption Effect of a Fano Resonant Silicon Metasurface

Hailun Xie, Lili Gui, Yiwen Liu, Fengbin Lin, and Kun Xu

CLEO: Applications and Technology 2023

San Jose, CA United States
7–12 May 2023
ISBN: 978-1-957171-25-8

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Joint Poster Session II (JW2A)

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H. Xie, L. Gui, Y. Liu, F. Lin, and K. Xu, "Enhanced Two-Photon Absorption Effect of a Fano Resonant Silicon Metasurface," in CLEO 2023, Technical Digest Series (Optica Publishing Group, 2023), paper JW2A.84.

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Abstract

We demonstrate that two-photon absorption effect of a silicon metasurface can be boosted, with β=173.2 cm/MW and Isat=93 MW/cm², due to local-field enhancement by tailored high-Q Fano resonance.

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