Dynamic inversion of planar-chiral response of terahertz metasurface based on critical transition of checkerboard structures-Reference-Cited by-同舟云学术

Dynamic inversion of planar-chiral response of terahertz metasurface based on critical transition of checkerboard structures

Published:2022-01-11 Issue:9 Volume:11 Page:2057-2064
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Urade Yoshiro¹^ORCID,Fukawa Kai²,Miyamaru Fumiaki²,Okimura Kunio³^ORCID,Nakanishi Toshihiro¹^ORCID,Nakata Yosuke⁴⁵^ORCID

Affiliation:

1. Department of Electronic Science and Engineering , Kyoto University , Kyoto 615-8510 , Japan

2. Department of Physics , Shinshu University , Nagano 390-8621 , Japan

3. School of Engineering , Tokai University , Hiratsuka , Kanagawa 259-1292 , Japan

4. Graduate School of Engineering Science , Osaka University , Osaka 560-8531 , Japan

5. Center for Quantum Information and Quantum Biology , Osaka University , Osaka 560-8531 , Japan

Abstract

Abstract Dynamic inversion of the planar-chiral responses of a metasurface is experimentally demonstrated in the terahertz regime. To realize this inversion, the critical transition of the checkerboard-like metallic structures is used. Resonant structures with planar chirality and their complementary enantiomeric patterns are embedded in the checkerboard. Using vanadium dioxide as a variable resistance, the metasurface is implemented in the terahertz regime. The responses of the metasurface to circularly polarized waves are then characterized by terahertz time-domain spectroscopy. Further, the sign of the circular conversion dichroism, which is closely related to the handedness of the planar chirality of the metasurface, is observed to be inverted at 0.64 THz by varying the temperature. Such invertible planar-chiral responses can be applied practically to the handedness-invertible chiral mirrors.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0671/pdf

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