摘要
针对不同浓度下介质厚度改变对后向散射光偏振特性影响的问题,以典型蒙特卡罗偏振模型为基础,提出了一种基于后向散射的可变介质厚度蒙特卡罗偏振模型。根据本文提出的模型开展了仿真实验,得到了不同浓度下介质厚度与后向散射偏振特性的影响关系。仿真结果表明,介质厚度在不同浓度下均对后向散射光的偏振度有着直接影响;在低浓度的情况下,介质厚度增加主要起消偏作用,浓度达到一定阈值后,介质厚度增加起起偏作用;在低浓度的情况下,线偏振光的后向散射光偏振保持特性优于圆偏振光,浓度达到一定阈值后,圆偏振光的后向散射光偏振保持特性优于线偏振光;在浓度极高的情况下,线偏振光与圆偏振光的保持特性趋于一致。
To the problem of how medium thickness influences the backscatter polarization property in medium with different concentration, based on typical polarization Monte Carlo model, we found a new model with backscattering and variable-thickness. Simulation result indicated that medium thickness can direltly influence polarization property of backscattering in medium with different concentration. Thickness mainly contributed to depolarization in medium with low concentration, and enpolarization in medium with high concentration; The polarization maintaining ability of backscatter light of linear polarized light was better than circular polarized light in low concentration. In medium with extremely high concentration, the polarization maintaining ability of backscatter light from circular and linear polarized light were similar.
出处
《量子光学学报》
CSCD
北大核心
2014年第3期266-270,共5页
Journal of Quantum Optics
基金
国家自然科学基金(61102153
61271121)
关键词
后向散射
偏振特性
蒙特卡罗
介质厚度
backscattering
polarization properties
Monte Carlo
mediam thickness
