Realization of Resonant Optical Metasurfaces with Maximal and Tunable Chiral Response

Tan Shi; Zi-Lan Deng; Guangzhou Geng; Yixuan Zeng; Guangwei Hu; Adam Overvig; Junjie Li; Cheng-Wei Qiu; Andrea Alù; Yuri S. Kivshar; Xiangping Li

doi:10.1364/CLEO_SI.2022.SF4K.7

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper SF4K.7
•https://doi.org/10.1364/CLEO_SI.2022.SF4K.7

Realization of Resonant Optical Metasurfaces with Maximal and Tunable Chiral Response

Tan Shi, Zi-Lan Deng, Guangzhou Geng, Yixuan Zeng, Guangwei Hu, Adam Overvig, Junjie Li, Cheng-Wei Qiu, Andrea Alù, Yuri S. Kivshar, and Xiangping Li

CLEO: Science and Innovations 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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Functional Surfaces and 2D Materials (SF4K)

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T. Shi, Z. Deng, G. Geng, Y. Zeng, G. Hu, A. Overvig, J. Li, C. Qiu, A. Alù, Y. S. Kivshar, and X. Li, "Realization of Resonant Optical Metasurfaces with Maximal and Tunable Chiral Response," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper SF4K.7.

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Abstract

We employ the physics of chiral bound state in the continuum and suggest planar chiral metasurfaces with near-perfect circular dichroism (CD). We demonstrate experimentally metasurfaces with CD=0.9 with Q factor exceeding Q=390 at optical frequencies.

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