船舰远程尾流散射光偏振特性的蒙特卡洛模拟

为了研究船舰尾流气泡幕散射光的偏振特性，利用偏振光传输的蒙特卡洛模型模拟了不同偏振态入射光经过船舰尾流时散射光偏振度的二维空间分布模式，分析了偏振度的径向分布与气泡半径、气泡散射系数和气泡幕厚度的关系。研究表明，尾流气泡幕散射光的偏振度的二维分布具有空间方位选择性，不同状态入射光的分布模式差异明显；随着气泡半径的增大，尾流气泡幕前向散射光偏振度二维分布的图像的空间方位选择特性减小；随着散射系数的增大，尾流气泡幕前向散射光的偏振度数值减小；随着气泡幕厚度的增加，尾流气泡幕前向散射光的偏振度数值减小。

Monte Carlo simulation of polarization properties of scattered light from far ship wakes

In order to study the polarization properties of scattered light from far ship wakes, the polarized Monte Carlo program for light propagation was used to simulate the 2-dimensional spatial distributions of degree of polarization(DOP) of ship wakes with different polarized incident lights. Radial distributions of DOP of scattered light from far ship wakes were analyzed with different bubble radius, scattering coefficients and thicknesses of bubbles film. The results show that spatial distributions of DOP have the properties of azimuth selecting which decreases with the increase of bubble radius, and the difference could be observed with different polarization states of the incident light. Besides, DOP of forward scattering light of ship wakes decreases with the increase of the scattering coefficients and thicknesses of bubble film.