双散射光合成场动态散斑的统计性质  

Statistical properties of synthetically dynamic speckle via dual scattered light

作　　者：彭翔[1] 马世宁[1] 

机构地区：[1]天津大学

出　　处：《光学学报》1989年第1期68-74,共7页Acta Optica Sinica

摘　　要：本文研究了在两束高斯光束照明条件下,由旋转散射体产生的双散射光合成的远场动态散斑的统计性质.这种动态散斑的统计性质由它的强度涨落的空-时相关函数描述.文中推导了这个函数的解析表达式,并采用了光子计算及光子相关技术,从实验上证实了这个表达式的正确性.Statistical properties of dynamic speckle with dual diffusing light combination from a rotating diffuser have been investigated under the condition of two Gaussian beams illumination.These properties are described by a specific space-time in tensity correlation function. We have derived the analytical expression of this function and have confirmed this theoretical result with an experiment by using photon counting and photon correlation techniques.

关 键 词：双散射光 动态散斑 空一时相关 

分 类 号：O436.2[机械工程—光学工程]