典型文献
Terahertz near-field microscopy based on an air-plasma dynamic aperture
文献摘要：
Terahertz(THz)near-field microscopy retains the advantages of THz radiation and realizes sub-wavelength imaging,which enables applications in fundamental research and industrial fields.In most THz near-field microscopies,the sample surface must be approached by a THz detector or source,which restricts the sample choice.Here,a technique was developed based on an air-plasma dynamic aperture,where two mutually perpendicular air-plasmas overlapped to form a cross-filament above a sample surface that modulated an incident THz beam.THz imaging with quasi sub-wavelength resolution(approximately λ/2,where λ is the wavelength of the THz beam)was thus observed without approaching the sample with any devices.Damage to the sample by the air-plasmas was avoided.Near-field imaging of four different materials was achieved,including metallic,semiconductor,plastic,and greasy samples.The resolution characteristics of the near-field system were investigated with experiment and theory.The advantages of the technique are expected to accelerate the advancement of THz microscopy.
文献关键词：
中图分类号：
作者姓名：
Xin-ke Wang;Jia-sheng Ye;Wen-feng Sun;Peng Han;Lei Hou;Yan Zhang
作者机构：
Beijing Key Laboratory of Metamaterials and Devices,Key Laboratory of Terahertz Optoelectronics Ministry of Education,Department of Physics,Capital Normal University,Beijing 100048,China;Applied Physics Department,Xian University of Technology,Xian,Shaanxi 710048,China
文献出处：
引用格式：
[1]Xin-ke Wang;Jia-sheng Ye;Wen-feng Sun;Peng Han;Lei Hou;Yan Zhang-.Terahertz near-field microscopy based on an air-plasma dynamic aperture)[J].光：科学与应用（英文版）,2022(06):1149-1157
A类：
microscopies
B类：
Terahertz,near,microscopy,air,dynamic,aperture,THz,retains,advantages,radiation,realizes,sub,wavelength,imaging,which,enables,applications,fundamental,research,industrial,fields,In,most,surface,must,approached,by,detector,source,restricts,choice,Here,technique,was,developed,where,two,mutually,perpendicular,plasmas,overlapped,form,cross,filament,above,that,modulated,incident,beam,quasi,resolution,approximately,thus,observed,without,approaching,any,devices,Damage,avoided,Near,four,different,materials,achieved,including,metallic,semiconductor,plastic,greasy,samples,characteristics,system,were,investigated,experiment,theory,are,expected,accelerate,advancement
AB值：
0.551669
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