中文摘要：

为了研究多次散射效应下偏振光在含矿物质粒子海水中的传输特性,建立了一种基于蒙特卡罗法的矢量辐射传输模型.验证了模型准确性,并利用该模型研究了矿物质粒子复折射率、粒子群平均半径和入射光偏振状态对传输特性的影响.模拟仿真结果表明,不同类型矿物质粒子中,较小复折射率实部的粒子,传输特性对复折射率实部变化的敏感性较大;较大复折射率实部的粒子,传输特性对复折射率实部变化敏感性较小.粒子复折射率的虚部是影响光波传输特性的另一重要因素,粒子的吸收性越大,其传输效果越差.随着海水矿物质粒子群平均半径变大,光波透射率降低,反射率增大.圆偏振光与自然光在含矿物质粒子海水中的传输特性相对接近,在海水中,透射率最高的是垂直偏振光,最差的是圆偏振光;反射率最大的是自然光,最小的是水平偏振光.其中水平偏振光传输特性受入射光入射角影响较大.

英文摘要：

In order to study the transmission characteristics of polarized light in seawater with mineral particles suspended,a Monte Carlo based vector radiative transfer model considering the multiscattering effect was proposed.The accuracy of the model was verified by literature results,and the influences of the mineral paticles′ micro-physical properties as well as polarization states on transmission characteristics of incident lightis were studied respectively.The result shows that there is a negative correlation between the sensibilities of propagation properties′response to the variation of the refractive index and the real part of refractive.The imaginary part of refractive indexwhich denotes the absorption ability of particles is an other important factor that influences the propagation characteristics of light.The transmission rate will decrease rapidly with the increase of the imaginary part of refractive index.With the increasing of effective radius,the transmission rate of light drops gradually,but the fact is reversed for the reflection rate.The transmission properties of circularly polarized light and natural light are similar.The transmission rate of vertically polarized light is the largest,while the transmission ability for circularly polarized is the worst.The reflection ability of natural light is the strongest among the four kinds of light,but the reflection ability of horizontally polarized light is the worst.The incident angle of horizontally polarized light has a more sinificant influence on the transmission properties than the other three types of polarized light.