典型文献
Noncoaxial RDE of circular asymmetry optical vortex for rotating axis detection
文献摘要：
We reveal the mechanism of the noncoaxial rotational Doppler effect(RDE)of an optical vortex and report its application in discriminating the orientation of the rotating axis of the rotating body.In most cases of the RDE-based measurement,the beam axis must be aligned with the rotating axis of the rotational body to observe a good signal.Once the beam axis is not coaxial with the rotating axis,the RDE frequency shift would change related to the misalignment distance,which can be called the noncoaxial RDE.Here,we take the advantage of the mis-aligned RDE augment with precise light-field modulation and successfully realize the discrimination of the ori-entation of the rotating axis relative to the illuminating beam.We clarify the principle of noncoaxial RDE and explain why the incomplete optical vortex(OV)is sensitive to the position of the rotating axis.We switch the OV field into four quadrants synchronized with sampling by the data acquisition system,and conduct Fourier trans-formation of the signals.Combined with the fitting algorithm,the orientation of the rotating axis can be rec-ognized directly.This method may find applications for the noncontact detection of rotating bodies in both industrial and astronomical scenarios.
文献关键词：
中图分类号：
作者姓名：
SONG QIU;XIANGYANG ZHU;RUOYU TANG;TONG LIU;RUIJIAN Li;YUAN REN
作者机构：
Department of Aerospace Science and Technology,Space Engineering University,Beijing 101416,China;Lab of Quantum Detection&Awareness,Space Engineering University,Beijing 101416,China;Department of Basic Course,Space Engineering University,Beijing 101416,China
文献出处：
引用格式：
[1]SONG QIU;XIANGYANG ZHU;RUOYU TANG;TONG LIU;RUIJIAN Li;YUAN REN-.Noncoaxial RDE of circular asymmetry optical vortex for rotating axis detection)[J].光子学研究（英文）,2022(11):2541-2548
A类：
Noncoaxial,noncoaxial
B类：
RDE,circular,asymmetry,optical,vortex,rotating,axis,detection,We,reveal,mechanism,rotational,Doppler,effect,report,its,discriminating,orientation,body,In,most,cases,measurement,beam,must,aligned,observe,good,Once,not,frequency,shift,would,change,related,misalignment,distance,which,can,called,Here,we,take,advantage,augment,precise,light,field,modulation,successfully,realize,discrimination,relative,illuminating,clarify,principle,explain,why,incomplete,OV,sensitive,position,switch,into,four,quadrants,synchronized,sampling,by,data,acquisition,system,conduct,Fourier,trans,formation,signals,Combined,fitting,algorithm,ognized,directly,This,method,may,find,applications,noncontact,bodies,both,industrial,astronomical,scenarios
AB值：
0.503147
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