Monte Carlo Simulation of Laser Beam Scattering by Water Droplets

被引：4

作者：

Wang Biao ^{[1
]}

Tong Guang-de ^{[1
]}

Lin Jia-xuan ^{[1
]}

机构：

[1] Sci & Technol Electromagnet Scattering Lab, Shanghai 200438, Peoples R China

来源：

INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2013: LASER SENSING AND IMAGING AND APPLICATIONS | 2013年 / 8905卷

关键词：

Water Droplets; Time-resolved; Monte Carlo; LIDAR; PHOTON MIGRATION; OPTICAL-PROPERTIES; TURBID MEDIA; MODELS;

D O I：

10.1117/12.2035033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Monte Carlo simulation of laser beam scattering in discrete water droplets is present and the temporal profile of LIDAR signal scattered from random distributed water droplets such as raindrop and fog is acquired. A photon source model is developed in the simulation for laser beam of arbitrary intensity distribution. Mie theory and geometrical optics approximation is used to calculate optical parameters, such as scattering coefficient, Aledo and average asymmetry factor, for water droplets of variable size with gamma distribution. The scattering angle is calculated using the probability distribution given by Henyey-Greenstein phase function. The model solving semi-infinite homogeneous media problem is capable of handling a variety of geometries and arbitrary spatio-temporal pulse profiles.

引用

页数：8

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