典型文献
Ultra-high-Q resonances in terahertz all-silicon metasurfaces based on bound states in the continuum
文献摘要：
High-Q metasurfaces have important applications in high-sensitivity sensing,low-threshold lasers,and nonlinear optics due to the strong local electromagnetic field enhancements.Although ultra-high-Q resonances of bound states in the continuum(BIC)metasurfaces have been rapidly developed in the optical regime,it is still a chal-lenging task in the terahertz band for long years because of absorption loss of dielectric materials,design,and fabrication of nanostructures,and the need for high-signal-to-noise ratio and high-resolution spectral measure-ments.Here,a polarization-insensitive quasi-BIC resonance with a high-Q factor of 1049 in a terahertz all-silicon metasurface is experimentally achieved,exceeding the current highest record by 3 times of magnitude.And by using this ultra-high-Q metasurface,a terahertz intensity modulation with very low optical pump power is dem-onstrated.The proposed all-silicon metasurface can pave the way for the research and development of high-Q terahertz metasurfaces.
文献关键词：
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作者姓名：
PENGFEI WANG;FENGYAN HE;JIANJUN LIU;FANGZHOU SHU;BIN FANG;TINGTING LANG;XUFENG JING;ZHI HONG
作者机构：
Centre for THz Research,China Jiliang University,Hangzhou 310018,China
文献出处：
引用格式：
[1]PENGFEI WANG;FENGYAN HE;JIANJUN LIU;FANGZHOU SHU;BIN FANG;TINGTING LANG;XUFENG JING;ZHI HONG-.Ultra-high-Q resonances in terahertz all-silicon metasurfaces based on bound states in the continuum)[J].光子学研究（英文）,2022(12):2743-2750
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Ultra,resonances,terahertz,silicon,metasurfaces,bound,states,continuum,High,have,important,applications,sensitivity,sensing,low,threshold,lasers,nonlinear,optics,due,strong,local,electromagnetic,field,enhancements,Although,ultra,BIC,been,rapidly,developed,optical,regime,still,chal,lenging,task,band,long,years,because,absorption,loss,dielectric,materials,design,fabrication,nanostructures,need,signal,noise,ratio,resolution,spectral,measure,Here,polarization,insensitive,quasi,experimentally,achieved,exceeding,current,highest,record,by,times,magnitude,And,using,this,intensity,modulation,very,pump,power,dem,onstrated,proposed,can,pave,way,research,development
AB值：
0.597282
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