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Conferences > CLEO_SI > 2023 > STh4M > STh4M.6

Terahertz Photoconductive Metasurface Detector with enhanced Two-Step Photon Absorption at 1550 nm

Hyunseung Jung, Lucy L Hale, Jayson Briscoe, Raktim Sarma, Ting Shan Luk, Sadhvikas J Addamane, John L Reno, Igal Brener, and Oleg Mitrofanov

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Abstract

We demonstrate the use of low-temperature grown GaAs (LT-GaAs) metasurface as an ultrafast photoconductive switching element gated with 1550 nm laser pulses. The metasurface is designed to enhance a weak two-step photon absorption at 1550 nm, enabling THz pulse detection.

© 2023 The Author(s)

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