Reconfigurable all-dielectric metasurface based on GSST

Jinglin He; Zhuolin Shi; Sheng Ye; Minhua Li; Jianfeng Dong

Results in Physics (Nov 2022)

Reconfigurable all-dielectric metasurface based on GSST

Jinglin He,
Zhuolin Shi,
Sheng Ye,
Minhua Li,
Jianfeng Dong

Affiliations

Jinglin He: Department of Electronic Information Science and Technology, Ningbo University, Ningbo 315211, China
Zhuolin Shi: Department of Electronic Information Science and Technology, Ningbo University, Ningbo 315211, China
Sheng Ye: Department of Electronic Information Science and Technology, Ningbo University, Ningbo 315211, China
Minhua Li: Corresponding authors.; Department of Electronic Information Science and Technology, Ningbo University, Ningbo 315211, China
Jianfeng Dong: Corresponding authors.; Department of Electronic Information Science and Technology, Ningbo University, Ningbo 315211, China

Journal volume & issue: Vol. 42
p. 106017

Abstract

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Reconfigurable metasurfaces provide a new way for applications requiring dynamic tunability, such as focusing lenses, holographic displays, optical switch and so on. In this paper, a reconfigurable bi-functional metasurface is proposed. Using phase-change material Ge2Sb2Se4Te1(GSST) as pattern layer, calcium fluoride as substrate, the metasurface can be switched from highly transmission (90 %) mode to perfect absorption (99 %) mode in the 1.55 μm wavelength region, when the GSST layer is transformed from the amorphous to crystalline state. And the response of this metasurface is independent of the polarization of incident wave. Our novel design has potential significance in the design of infrared switching devices in the future.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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