典型文献
Dynamic full-field refractive index distribution measurements using total internal reflection terahertz digital holography
文献摘要：
Massive usage scenarios prompt the prosperity of terahertz refractive index(THz RI)measurement methods.However,they are very difficult in measuring the full-field dynamical RI distributions of either solid samples without a priori thickness or liquid samples.In this study,we propose total internal reflection THz digital holog-raphy and apply it for measuring RI distributions for both solid and liquid samples dynamically.An RI mea-surement model is established based on an attenuated total reflection prism with a pitching angle.The pitching angle and the field of view can be numerically calculated from the spectrogram of the off-axis Fresnel hologram,which solves the adjustment of the visually opaque prism irradiated by the invisible THz beam.Full-field RI distributions of the droplets of solid-state soy wax and distilled water are obtained and compared with THz time-domain spectroscopy.The evaporation of an ethanol solution droplet is recorded,and the variation of the RI distribution at the sample-prism interface is quantitatively visualized with a temporal resolution of 10 Hz.The proposed method greatly expands the sample range for THz RI measurements and provides unprec-edented insight into investigating spontaneous and dynamic THz phenomena.
文献关键词：
中图分类号：
作者姓名：
DAYONG WANG;DUOXUAN MA;KUNLUN LI;YAYA ZHANG;JIE ZHAO;YUNXIN WANG;LU RONG
作者机构：
College of Physics and Optoelectronics,Faculty of Science,Beijing University of Technology,Beijing 100124,China;Beijing Engineering Research Center of Precision Measurement Technology and Instruments,Beijing 100124,China
文献出处：
引用格式：
[1]DAYONG WANG;DUOXUAN MA;KUNLUN LI;YAYA ZHANG;JIE ZHAO;YUNXIN WANG;LU RONG-.Dynamic full-field refractive index distribution measurements using total internal reflection terahertz digital holography)[J].光子学研究（英文）,2022(02):289-296
A类：
holog,unprec,edented
B类：
Dynamic,full,field,refractive,measurements,using,total,internal,reflection,terahertz,digital,holography,Massive,usage,scenarios,prompt,prosperity,THz,RI,methods,However,they,very,difficult,measuring,distributions,either,solid,samples,without,priori,thickness,liquid,In,this,study,apply,both,dynamically,An,model,established,attenuated,prism,pitching,angle,view,can,numerically,calculated,from,spectrogram,off,axis,Fresnel,hologram,which,solves,adjustment,visually,opaque,irradiated,by,invisible,beam,Full,droplets,state,soy,wax,distilled,water,obtained,compared,domain,spectroscopy,evaporation,ethanol,recorded,variation,interface,quantitatively,visualized,temporal,resolution,proposed,greatly,expands,range,provides,insight,into,investigating,spontaneous,phenomena
AB值：
0.53948
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