典型文献
Mid-infrared active metasurface based on Si/VO2 hybrid meta-atoms
文献摘要：
Active metasurfaces whose optical properties can be tuned by an external stimulus have attracted great research interest recently.Introduction of VO2 phase change material in all-dielectric metasurfaces has been demonstrated to modulate the resonance wavelength and amplitude in the visible to near-infrared wavelength range.In this study,we report a mid-infrared active metasurface based on Si/VO2 hybrid meta-atoms.By incorporating VO2 thin films in different locations of Si/VO2 all-dielectric nanodisks,we demonstrate different modulation ampli-tude of the electric or magnetic resonance scattering cross sections,leading to drastically different transmission spectrum upon VO2 insulator to metal phase transition.The physical mechanism is originated from the field profiles of the resonance modes,which interact with VO2 differently depending on its locations.Based on this mechanism,we experimentally demonstrated a large modulation of the transmittance from 82％to 28％at the 4.6 μm wavelength.Our work demonstrates a promising potential of VO2-based active all-dielectric metasurface for mid-infrared photonic applications such as infrared camouflage,chemical/biomedical sensing,optical neuro-morphic computing,and multispectral imaging.
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作者姓名：
TONGTONG KANG;BOYU FAN;JUN QIN;WEIHAO YANG;SHUANG XIA;ZHENG PENG;BO LIU;SUI PENG;XIAO LIANG;TINGTING TANG;LONGJIANG DENG;YI LUO;HANBIN WANG;QIANG ZHOU;LEI BI
作者机构：
National Engineering Research Center of Electromagnetic Radiation Control Materials,University of Electronic Science and Technology of China,Chengdu 610054,China;State Key Laboratory of Electronic Thin-Films and Integrated Devices,University of Electronic Science and Technology of China,Chengdu 610054,China;Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China;College of Optoelectronic Engineering,Chengdu University of Information Technology,Chengdu 610225,China;State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Panzhihua 617000,China;Microsystem&Terahertz Research Center,China Academy of Engineering Physics(CAEP),Chengdu 610200,China;Institute of Electronic Engineering,China Academy of Engineering Physics(CAEP),Mianyang 621900,China
文献出处：
引用格式：
[1]TONGTONG KANG;BOYU FAN;JUN QIN;WEIHAO YANG;SHUANG XIA;ZHENG PENG;BO LIU;SUI PENG;XIAO LIANG;TINGTING TANG;LONGJIANG DENG;YI LUO;HANBIN WANG;QIANG ZHOU;LEI BI-.Mid-infrared active metasurface based on Si/VO2 hybrid meta-atoms)[J].光子学研究（英文）,2022(02):373-380
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Mid,infrared,active,Si,VO2,hybrid,atoms,Active,metasurfaces,whose,optical,properties,can,tuned,by,external,stimulus,have,attracted,great,research,interest,recently,Introduction,phase,change,material,dielectric,been,demonstrated,modulate,resonance,wavelength,amplitude,visible,near,range,this,study,we,report,mid,By,incorporating,thin,films,locations,nanodisks,modulation,magnetic,scattering,cross,sections,leading,drastically,transmission,spectrum,upon,insulator,metal,transition,physical,mechanism,originated,from,field,profiles,modes,which,interact,differently,depending,its,Based,experimentally,large,transmittance,Our,work,demonstrates,promising,potential,photonic,applications,such,camouflage,chemical,biomedical,sensing,neuro,morphic,computing,multispectral,imaging
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0.56978
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