激光在海洋型气溶胶中传输的蒙特卡罗模拟MONTE CARLO SIMULATION OF LASER TRANSMISSION IN MARINE AEROSOLS
冷坤,章曦,武文远,龚艳春,杨云涛
摘要(Abstract):
激光在海洋大气中传输时,由于海洋型气溶胶的散射和吸收,激光能量会不断衰减,影响激光系统的作用效能。基于蒙特卡罗方法,研究了传播距离、能见度和激光束初始均方根半径对到达接收平面处光子空间分布的影响。研究表明,随着传播距离的增加,到达接收平面光子数呈近似线性减少的趋势;随着能见度的增加,到达接收平面光子数一开始迅速增加,然后趋于稳定;随着激光束初始均方根半径的增加,到达接收平面光子数一开始变化不大,然后缓慢减少。此外,在上述几种情形下,均未发现光子空间分布对高斯分布的偏离。研究结果可为分析海洋大气环境对激光器作用效能的影响提供理论依据。
关键词(KeyWords): 激光传输;海洋型气溶胶;蒙特卡罗方法
基金项目(Foundation):
作者(Author): 冷坤,章曦,武文远,龚艳春,杨云涛
参考文献(References):
- [1]刘西川,高太长,刘志田.大气气溶胶对激光传输衰减的影响研究[J].大气与环境光学学报.2012,7(3):181-190.LIU X C,GAO T C,LIU Z T.Effect of atmospheric aerosols on laser transmission attenuation[J].Journal of Atmospheric and Environmental Optics,2012,7(3):181-190.(in Chinese)
- [2]饶瑞中.现代大气光学[M].北京:科学出版社,2012:608.
- [3]马文淦.计算物理学[M].北京:科学出版社,2009:247.
- [4]王红霞,竹有章,田涛,等.激光在不同类型气溶胶中传输特性研究[J].物理学报,2013,62(2):024214.1-10.WANG H X,ZHU Y Z,TIAN T,et al.Characteristics of laser transmission in different types of aerosols[J].Acta Phys.Sin.2013,62(2):024214.1-10.(in Chinese)
- [5]李华,王彦斌,邹前进,等.包容性非球形气溶胶粒子的散射特性及其对激光传输的影响研究[J].光子学报,2014,43(9):0914001.1-6.LI H,WANG Y B,ZOU Q J,et al.Study of scattering characters of coated non-spherical aerosols particles and its effects on the laser signals propagation[J].Acta Photonica Sinica,2014,43(9):0914001.1-6.(in Chinese)
- [6]景琼琼,曹念文,杨少波,等.粒子的非球形程度对消光系数的影响研究[J].光散射学报,2017,29(3):1-8.JING Q Q,CAO N W,YANG S B,et al.Effects of the degree of non-spherical particles on extinction coefficient[J].The Journal of Light Scattering,2017,29(3):1-8.(in Chinese)
- [7]赵文娟.大气气溶胶对激光的衰减特性研究[D].西安电子科技大学,2014.
- [8]石广玉.大气辐射学[M].北京:科学出版社,2007.
- [9]韩永,饶瑞中,王英俭.利用大气能见度获取多波长气溶胶光学特性[J].红外与激光工程,2007,36(2):266-270.HAN Y,RAO R Z,WANG Y J.Multi-wavelength aerosol optical characteristics obtained by atmospheric visbility[J].Infrared and Laser Engineering,2007,36(2):266-270.(in Chinese)
- [10]章曦,李配军,吴方平,等.基于蒙特卡罗方法的波动水面对激光水下目标探测的影响[J].中国激光,2012,39(7):0702003.1-5.ZHANG X,LI P J,WU F P,et al.Influence of wavy sea surface on laser detection of underwater target with Monte Carlo method[J].Chinese Journal of Lasers,2012,39(7):0702003.1-5.(in Chinese)
- [11]RAMELLA-ROMAN J C,PRAHL S A,JACQUES S L.Three Monte Carlo programs of polarized light transport into scattering media_part I[J].Opt.Express,2005,13(4420).
- [12]RAMELLA-ROMAN J C,PRAHL S A,JACQUES S L.Three Monte Carlo programs of polarized light transport into scattering media_part II[J].Opt.Express,2005,13(10392).
- [13]胡帅,高太长,李浩,等.基于相函数分段加权采样的近红外激光传输特性[J].中国激光,2015,42(8):0802008.1-10.HU S,GAO T C,LI H,et al.Laser transfer properties of aerosols at near-infrared waveband based on sectionalweighted sampling of scattering phase functions[J].Chinese Journal of Lasers,2015,42(8):0802008.1-10.(in Chinese)
- [14]TINET E,AVRILLIER S,TUALLE J M.Fast semianalytical Monte Carlo simulation for time-resolved light propagation in turbid media[J].Journal of the Optical Society of America A,1996,13(9):1903-1915.
- [15]POOLE L R,VENABLE D D,CAMPBELL J W.Semianalytic Monte Carlo radiative transfer model for oceanographic lidar systems[J].Applied Optics,1981,20(20):3653-3656.