Zhang Chunmei, Horder Sean, Lee Tim K, Wang Wei
J Opt Soc Am A Opt Image Sci Vis. 2019 Feb 1;36(2):277-282. doi: 10.1364/JOSAA.36.000277.
The random-walk approach has been extended and applied to study the development of polarization speckle by taking the vector nature into account for stochastic electric fields. Based on the random polarization phasor sum, the first and second moments of the Stokes parameters of the resultant polarization speckle have been examined. Under certain assumptions about the statistics of the component polarization phasors that make up the sum, we present some of the details of the spatial derivation that lead to the expressions for the degree of polarization and the newly proposed Stokes contrast that are suitable for describing the polarization speckle development. This vectorial extension of the random walk will provide an intuitive explanation for the development of the polarization speckle.
随机游走方法已得到扩展，并应用于通过考虑随机电场的矢量性质来研究偏振散斑的发展。基于随机偏振相量和，研究了所得偏振散斑的斯托克斯参数的一阶和二阶矩。在关于构成和的分量偏振相量统计的某些假设下，我们给出了空间推导的一些细节，这些细节导致了适用于描述偏振散斑发展的偏振度表达式和新提出的斯托克斯对比度。随机游走的这种矢量扩展将为偏振散斑的发展提供直观的解释。
