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

作　　者：GONG YiQuan GUO YanMing CHEN ShuNi LI Meng PAN QingHui SHUAI Yong 

机构地区：[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

出　　处：《Science China(Technological Sciences)》2024年第7期2244-2254,共11页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 52227813, 52106085);China Postdoctoral Science Foundation (Grant Nos. 2023M740905, 2021M690822);the Natural Science Foundation of Heilongjiang Province (Grant No. LH2023E043);the National Key Research and Development Program of China (Grant No. 2022YFE0210200);the Fundamental Research Funds for the Central Universities (Grant No. 2022ZFJH04)。

摘　　要：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.

关 键 词：optical communication thermochromic property atmospheric window optical switch magnetic polariton 

分 类 号：TN929.1[电子电信—通信与信息系统]