Monte Carlo simulation of depolarization during laser transferring in the water

XIA Min; YANG Ke-cheng; XU De-sheng; LIU Qi-zhong

By means of Monte Carlo simulation of the process that photon transferring in the water,the depolarization of the polarized laser beam in the ocean is studied,as well as the effect of different ocean optical properties.The depolarization of different sea depth is obtained.The result shows that seawater with lots of particles playes great part in the depolarization of the polarized laser beam.When the polarized laser transmittes some distance under seawater,it will turn into depolarized laser.The particles with difference size distributed in the seawater are the main reason of the depolarization of seawater.The ocean optical property has great effect on the depolarization of seawater.As the increasing of the ocean attenuation coefficient,the transferring distance at which polarized laser turnes into depolarized laser is decreasing.

Corresponding author: YANG Ke-cheng, kcyang@hust.edu.cn;

1. National Laboratory of Laser Technology, HUST, Wuhan 430074, China

Received Date: 2004-02-10

Accepted Date: 2004-03-23

Available Online: 2005-01-25

Abstract: By means of Monte Carlo simulation of the process that photon transferring in the water,the depolarization of the polarized laser beam in the ocean is studied,as well as the effect of different ocean optical properties.The depolarization of different sea depth is obtained.The result shows that seawater with lots of particles playes great part in the depolarization of the polarized laser beam.When the polarized laser transmittes some distance under seawater,it will turn into depolarized laser.The particles with difference size distributed in the seawater are the main reason of the depolarization of seawater.The ocean optical property has great effect on the depolarization of seawater.As the increasing of the ocean attenuation coefficient,the transferring distance at which polarized laser turnes into depolarized laser is decreasing.

HTML

Reference (10)

[1]	KOUZOUBOV A, BRENNAR M J,THOMAS J C. Treatment of polarization in laser remote sensing of ocean water [J]. Appl Opt,1998,37(18):3873～3885.
[2]	ARUGA T,IGARASHI T. Narrow beam light transfer in small particles: image blurring and depolarization [J]. Appl Opt, 1981,20(15):2699～2705.
[3]	ADAMS J T, AAS E, HOJERSLEV N K et al. Comparison of radiance and polarization values observed in the mediterranean sea and simulated in a Monte Carlo model [J]. Appl Opt,2000,41 (15):2724～2733.
[4]	RAKOVIC M J,KATTAWAR G W,MEHRUBEOGLU M et al. Light backscattering polarization patterns from turbid media:theory and experiment [J]. Appl Opt, 1999,38 (15): 3399～3408.
[5]	VASILKOV A P,GOLDIN Y A,GUREEV B A et al. Airborne polarized lidar detection of scattering layers in the ocean [J]. Appl Opt,2001,40 (24):4353～4363.
[6]	POOLE L R, VENABLE D D, CAMPBELL J W. Semianalytic Monte Carlo radiative transfer model for oceanographic lidar systems [J]. Appl Opt,1981,20(20):3653～3660.
[7]	TINET E, AVRILLIER S, TUALLE J M. Fast semianalytical Monte Carlo simulation for time-resolved light propagation in turbid media [J]. J O S A,1996,A13(9):1903～1907.
[8]	BOHREN C F, HUFFMAN D R. Absorption and scattering of light by small particles [M]. New York: Wiley Interscience Publication,1983. 477～480.
[9]	WISCOMBE W J. Improved Mie scattering algorithms [J]. Appl Opt,1980,19(9):1505～1513.
[10]	RISOVIC D. Two-component model of sea particle size distribution [J]. Deep-Sea Research I,1993,40(7):1459～1473.

Monte Carlo simulation of depolarization during laser transferring in the water

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views