Paper
18 March 2024 High efficiency non-reciprocal metasurface based on vanadium dioxide
Author Affiliations +
Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 1310467 (2024) https://doi.org/10.1117/12.3023750
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China
Abstract
Non-reciprocal devices are essential in many field that require unidirectional wave transmission, such as communications, sensor technology and quantum computing. However, most existing devices are constrained by factors including power supply, external magnetic field, efficiency, and bandwidth. We demonstrated an all-passive, broadband and high efficient nonreciprocal metasurface based on vanadium dioxide (VO2). The electromagnetic thermal coupling simulation results show that when the incident light power density is 40-55 kW/cm2, the transmittance is 90% in one direction and nearly 20% in the other direction. Moreover, benefiting from the non-resonant structure of the metasurface, the device can be used at a broadband wavelength of 7-12 μm. Thus, the demonstrated device has the advantages of broadband and high efficiency, offering a simple but effective scheme of all-passive unidirectional devices.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Taiming Zhang, Tongtong Kang, Fei Zhang, Yan Chen, Anbin Du, Li Long, Yun Long, Maoyu Wang, Yinghui Guo, Mingbo Pu, and Xiangang Luo "High efficiency non-reciprocal metasurface based on vanadium dioxide", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 1310467 (18 March 2024); https://doi.org/10.1117/12.3023750
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KEYWORDS
Transmittance

Vanadium

Silicon

Modulation

Electric fields

Incident light

Absorbance

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