Exciting broadband thermochromic transmission property opposite to vanadium dioxide in the atmospheric window

GONG YiQuan ¹GUO YanMing ¹CHEN ShuNi ¹LI Meng ¹PAN QingHui ¹SHUAI Yong¹

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作者信息

1. Ministry of Industry and Information Technology Key Laboratory of Aerospace Thermophysics,School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China
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Abstract

The traditional telecommunications band performs poorly in harsh weather conditions due to atmospheric absorption.In recent years,researchers have begun to study optical communication through atmospheric windows,and optical switches are an essential component of optical communication.A broadband atmospheric window optical switch was proposed based on Vanadium dioxide and magnetic polaritons(MP).It is formed by the stacking of two metal-dielectric-metal structures.The simulation results show that the modulation depth can reach 98.38％,and the extinction ratio is 17.93 dB.By calculating the magnetic field,we confirmed that the reason for the"off'mode is the coupling between the different MP modes,while the"on"mode is the excitation of MP.The optical switch we proposed may be applied to radiation cooling and optical satellite communication.

Key words

optical communication/thermochromic property/atmospheric window/optical switch/magnetic polariton

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基金项目

National Natural Science Foundation of China(Grant Nos.52227813)

National Natural Science Foundation of China(52106085)

China Postdoctoral Science Foundation(Grant Nos.2023M740905)

China Postdoctoral Science Foundation(2021M690822)

Natural science Foundation of Heilongjiang Province(LH2023E043)

National Key Research and Development Program of China(2022YFE0210200)

Fundamental Research Funds for the Central Universities(2022ZFJH04)

出版年

2024

中国科学:技术科学(英文版)

中国科学院

中国科学:技术科学(英文版)

CSTPCDEI

影响因子：1.056

ISSN：1674-7321

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