Work

Multifunctional polarization selectivity in a Sb 2 S 3 -based dichroism metasurface

Year: 2026

Type: article

Abstract: Multifunctional polarization selectivity offers promising avenues for advanced applications in optical communications, sensing, holography, and so on. Here, we realized multifunctional linear and circular polarization selectivity empowered by q-BICs in a Sb 2 S 3 -based Z-shaped metasurface. The near-unity and reversible circular dichroism (CD) as well as linear dichroism (LD) could be selectively obtained by controlling the azimuth angles within the 90° range. The multiple dichroisms under various azimuth angles ( CD 0° = −0.94, LD 45° = 0.87, CD 90° = 0.99) are supported by polarization selective excitation of magnetic dipole resonance, which is demonstrated by quantitative multipole decompositions and electromagnetic field distribution analysis. Furthermore, the strength of CD and LD could be dynamically tuned by changing the phase of Sb 2 S 3 , respectively.

Source: Optics Express

DOI: 10.1364/oe.584386

Authors: Huilin Mo, Bingying Chen, Huan Jiang, Jiancai Xue, Yongyuan Jiang

Institution: Harbin Institute of Technology

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: Basic and Applied Basic Research Foundation of Guangdong Province