Multi-functional metasurface:ultra-wideband/multi-band absorption switching by adjusting guided-mode resonance and local surface plasmon resonance effects  

作　　者：Wenxin Li Shubo Cheng Huafeng Zhang Zao Yi Bin Tang Can Ma Pinghui Wu Qingdong Zeng Rizwan Raza 

机构地区：[1]School of Physics and Optoelectronic Engineering,Yangtze University,Jingzhou,Hubei 434023,China [2]Joint Laboratory for Extreme Conditions Matter Properties,Southwest University of Science and Technology,Mianyang 621010,China [3]School of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,China [4]School of Microelectronics and Control Engineering,Changzhou University,Changzhou 213164,China [5]Department of Oncology,Sichuan Science City Hospital,Mianyang,Sichuan Province 621000,China [6]Office of Science and Technology,Quanzhou Normal University,Quanzhou 362000,China [7]School of Physics and Electronic-information Engineering,Hubei Engineering University,Xiaogan 432000,China [8]Department of Physics COMSATS Institute of Information Technology,54000 Lahore,Pakistan

出　　处：《Communications in Theoretical Physics》2024年第6期174-184,共11页理论物理通讯（英文版）

基　　金：support by the National Natural Science Foundation of China(Nos.51606158,11604311,12074151);funding from the Sichuan Science and Technology Program(No.2021JDRC0022);funding from the Natural Science Foundation of Fujian Province(No.2021J05202);funding from the Research Project of Fashu Foundation(No.MFK23006);funding from the Open Fund of the Key Laboratory for Metallurgical Equipment and Control Technology of Ministry of Education in Wuhan University of Science and Technology,China(No.MECOF2022B01);funding by the project supported by Guangxi Key Laboratory of Precision Navigation Technology and Application,Guilin University of Electronic Technology(No.DH202321).

摘　　要：This study introduces an innovative dual-tunable absorption film with the capability to switch between ultra-wideband and narrowband absorption.By manipulating the temperature,the film can achieve multi-band absorption within the 30-45 THz range or ultra-wideband absorption spanning 30-130 THz,with an absorption rate exceeding 0.9.Furthermore,the structural parameters of the absorption film are optimized using the particle swarm optimization(PSO)algorithm to ensure the optimal absorption response.The absorption response of the film is primarily attributed to the coupling of guided-mode resonance and local surface plasmon resonance effects.The film's symmetric structure enables polarization incoherence and allows for tuning through various means such as doping/voltage,temperature and structural parameters.In the case of a multi-band absorption response,the film exhibits good sensitivity to refractive index changes in multiple absorption modes.Additionally,the absorption spectrum of the film remains effective even at large incidence angles,making it highly promising for applications in fields such as biosensing and infrared stealth.

关 键 词：PSO optimization ultra-wideband/narrowband absorption switching intelligent absorption film vanadium dioxide 

分 类 号：O53[理学—等离子体物理]