舰船远场微气泡尾流的退偏特性  

Depolarization Properties of Microbubbles Film from Distant Ship Wake

作　　者：杨郁[1] 张建生[1] 

机构地区：[1]西安工业大学理学院,西安710021

出　　处：《西安工业大学学报》2014年第8期603-608,共6页Journal of Xi’an Technological University

基　　金：陕西省教育厅专项科研计划项目(2010JK585);陕西省自然科学研究项目(2004A18)

摘　　要：为研究船远场微气泡尾流对偏振光的消偏作用,采用偏振光传输的Monte Carlo模拟程序仿真了尾流气泡幕前向散射偏振度和穆勒矩阵元的二维分布模式,计算了入射光的偏振态、气泡幕的散射系数、气泡幕的厚度以及气泡平均粒径4个类型参量改变时尾流气泡幕前向散射的退偏特性.研究结果表明:尾流气泡幕前向散射偏振度随着入射光偏振态的变化存在不同的方位选择取向,相比于圆偏振光气泡幕对线偏振光有较强的退偏作用,尾流气泡幕退偏作用随着气泡幕厚度和散射系数的增加而增强,随着气泡幕平均粒径的增大偏振度的震荡增大并最终趋于平稳.In order to investigate the depolarization effects of microbubbles film from distant ship wake （MFDSW） on polarized light ,2-D distribution models of elements of backscattering Mueller matrix and degree of polarization （DOP ） from MFDSW are simulated by using the program of Monte Carlo simulation of polarized light propagation ,also the depolarization properties of MFDSW are studied with 4 different parameters ,w hich include polarization states of incident light ,scattering coefficients and thicknesses of MFDSW as well as the average particle diameters of BFPSW .The results show ：Spatial distributions of DOP from MFDSW have the properties of azimuth selecting with different polarization states of incident light ,the depolarization effect of BFPSW for linearly polarized light is stronger than that of circularly polarized light .Also the depolarization effect becomes stronger with the increasing of scattering coefficients and thicknesses of bubbles film .DOP of M FDSW shockingly increases with the increasing of average particle diameters ,and eventually tend to be stable .

关 键 词：散射 偏振 尾流 微气泡 

分 类 号：O436.3[机械工程—光学工程]