Broadband cross-circular polarization carpet cloaking based on a phase change material metasurface in the mid-infrared region

作     者：Bo Fang Dantian Feng Peng Chen Lijiang Shi Jinhui Cai Jianmin Li Chenxia Li Zhi Hong Xufeng Jing Bo Fang;Dantian Feng;Peng Chen;Lijiang Shi;Jinhui Cai;Jianmin Li;Chenxia Li;Zhi Hong;Xufeng Jing

作者机构：College of Metrology&Measurement EngineeringChina Jiliang UniversityHangzhou 310018China Institute of Optoelectronic TechnologyChina Jiliang UniversityHangzhou 310018China Centre for THz ResearchChina Jiliang UniversityHangzhou 310018China Hangzhou Hangxin Qihui Technology Co.LtdHangzhou 310026China University of Shanghai for Science and TechnologyNo.516 Jung Gong RoadShanghai 200093China 

出 版 物：《Frontiers of physics》 (物理学前沿（英文版）)

年 卷 期：2022年第17卷第5期

页      面：83-91页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：This work was supported by the National Key R&D Program of China(No.2018YFF01013005) the Natural Science Foundation of Zhejiang Province(Nos.LY22F050001,LZ21A040003,and LY20F050007) the National Natural Science Foundation of China(Nos.52076200 and 62175224) the Newshoot Talents Program of Zhejiang province(Nos.2021R409042 and 2021R409012) the Fundamental Research Funds for the Provincial Universities of Zhejiang 

主　　题：metamaterial metasurface cloaking 

摘      要：In view of the fact that most invisibility devices focus on linear polarization cloaking and that the characteristics of mid-infrared cloaking are rarely studied,we propose a cross-circularly polarized invisibility carpet cloaking device in the mid-infrared *** on the Pancharatnam–Berry phase principle,the unit cells with the cross-circular polarization gradient phase were carefully designed and constructed into a *** order to achieve tunable cross-circular polarization carpet cloaks,a phase change material is introduced into the design of the unit *** the phase change material is in amorphous and crystalline states,the proposed metasurface unit cells can achieve highefficiency cross-polarization conversion,and reflection intensity can be *** to the phase compensation principle of carpet cloaking,we construct a metasurface cloaking device with a phase gradient using the designed unit *** the near-and far-field distributions,the cross-circular polarization cloaking property is confirmed in the broadband wavelength range of 9.3–11.4μ*** proposed cloaking device can effectively resist detection of cross-circular polarization.