Broadband Circular Dichroism Through An Achiral Metasurface

Haoran Ren; Xiangping Li; Qiming Zhang; Min Gu

doi:10.1364/FIO.2015.FM3B.6

Frontiers in Optics 2015
OSA Technical Digest (online) (Optica Publishing Group, 2015),
paper FM3B.6
•https://doi.org/10.1364/FIO.2015.FM3B.6

Broadband Circular Dichroism Through An Achiral Metasurface

Haoran Ren, Xiangping Li, Qiming Zhang, and Min Gu

Frontiers in Optics 2015

San Jose, California United States
18–22 October 2015
ISBN: 978-1-943580-03-3

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Plasmonics and Nanophotonics (FM3B)

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H. Ren, X. Li, Q. Zhang, and M. Gu, "Broadband Circular Dichroism Through An Achiral Metasurface," in Frontiers in Optics 2015, OSA Technical Digest (online) (Optica Publishing Group, 2015), paper FM3B.6.

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Abstract

We demonstrate a direct distinguishing feature of circularly polarized light through a single nano-aperture. Giant circular dichroism is achieved over a broad spectrum through an achiral metasurface with a mildly focused orbital angular momentum beam.

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