典型文献
Dynamic terahertz anisotropy and chirality enhancement in liquid-crystal anisotropic dielectric metasurfaces
文献摘要：
To enhance and actively control terahertz(THz)anisotropy and chirality,we have designed and fabricated a THz composite device with a liquid crystal(LC)layer and Si anisotropic metasurface.By initial anchoring and electri-cally rotating the spatial orientation of the LC optical axis,the different symmetry relationships are obtained in this hybrid device.When the optical axis of LC is parallel or perpendicular to the optical axis of the Si metasur-face,the anisotropy of the device will be enhanced or offset,which leads to a tunable phase-shift range of more than 180°.When there is an angle between the two optical axes,due to the destruction of the mirror symmetry in the LC-Si anisotropic medium,the highest circular dichroism of the device reaches 30 dB in the middle ori-entation state of the LC optical axis,and the active modulation can be realized by changing the bias electric field on the LC layer.This composite device demonstrates rich characteristics for the feasible manipulation of THz polarization conversion and chiral transmission,which can be applied in THz polarization imaging and chiral spectroscopy.
文献关键词：
中图分类号：
作者姓名：
HUI-JUN ZHAO;FEI FAN;TIAN-RUI ZHANG;YUN-YUN JI;SHENG-JIANG CHANG
作者机构：
Institute of Modern Optics,Nankai University,Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology Tianjin 300350,China;Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology,Tianjin 300350,China
文献出处：
引用格式：
[1]HUI-JUN ZHAO;FEI FAN;TIAN-RUI ZHANG;YUN-YUN JI;SHENG-JIANG CHANG-.Dynamic terahertz anisotropy and chirality enhancement in liquid-crystal anisotropic dielectric metasurfaces)[J].光子学研究（英文）,2022(04):1097-1106
A类：
metasur
B类：
Dynamic,terahertz,anisotropy,chirality,enhancement,liquid,crystal,anisotropic,dielectric,metasurfaces,To,actively,control,THz,have,designed,fabricated,composite,device,LC,layer,Si,By,initial,anchoring,cally,rotating,spatial,orientation,optical,axis,different,symmetry,relationships,are,obtained,this,hybrid,When,parallel,perpendicular,will,enhanced,offset,which,leads,tunable,phase,shift,range,more,than,there,angle,between,two,axes,due,destruction,mirror,medium,highest,circular,dichroism,reaches,dB,middle,state,modulation,can,realized,by,changing,bias,field,This,demonstrates,rich,characteristics,feasible,manipulation,polarization,conversion,transmission,applied,imaging,spectroscopy
AB值：
0.522707
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