期刊论文

He, MD

英文

Applied Physics Letters

0003-6951

2023

123

9

091701

10.1063/5.0163751

This work is supported by the Natural Science Foundation of Hunan Province, China (Grant No. 2019JJ40533), the Opening Foundation of Hunan Province Key Laboratory of Materials Surface and Interface Science and Technology (Grant No. KFBJM2019001), and the S [2019JJ40533]; Natural Science Foundation of Hunan Province, China [KFBJM2019001]; Opening Foundation of Hunan Province Key Laboratory of Materials Surface and Interface Science and Technology [2023CX02068]; Scientific Innovation Fund for Post-graduates of Central South University of Forestry and Technology

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Metamaterial-based technologies offer opportunities to realize spin-selective encryption platforms for key encoding, yet the flexibility and controllability of encrypted imaging are not satisfactory well enough. In this paper, we propose a temperature tunable chirality-selective meta-absorber based on the thermal phase change material of vanadium dioxide (VO2). The meta-absorber has the functionality of spin-selective absorption in high temperature, which enables perfect absorption at resonant frequency for one spin state of light, and a little loss for the other, resulting in a significant ab...