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Theoretic Study of Smoothing Speckles Using Zero-Correlation Phase Plate

Xiao Jun1) ,2 ) Lü Baida1) 1 ) ,Institute of L aser Physics and Chemistry,Sichuan University,Chengdu 6 1 0 0 6 4 2 ) ,Department of Physics,Southwest Nationalities College,Chengdu 6 1 0 0 41 ( Received5 April1 999;revised2 5 May1 999)  
The characteristics of zero- correlation phase plate smoothing interference speckles are analyzed theoretically and simulated numerically.The results show thatalthough the zero- correlation phase plates are designed on the incident laser beam being a plane wave,the speckle contrasts of the far- field spots with these phase plates are much smallerthan thatwith the random phase plates in the case of near- field phase and amplitude having small fluctuations. Therefore the zero- correlation phase plates are more effective than random phase plates for speckles smoothing.
【Fund】: 国家高技术研究发展计划资助课题
【CateGory Index】: TN24
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