散射
米氏散射
气溶胶
大气光学
光学
前向散射
涡流
物理
粒子光散射
光散射
漫射天空辐射
薄雾
计算物理学
气象学
作者
Chenge Shi,Lixin Guo,Mingjian Cheng,Martin P. J. Lavery,Songhua Liu
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2020-08-24
卷期号:28 (19): 28072-28072
被引量:18
摘要
Mie theory is widely used for the simulation and characterization of optical interaction with scattering media, such atmospheric pollutants. The complex refractive index of particle plays an important role in determining the scattering and absorption of light. Complex optical fields, such as vortex beams, will interact with scattering particulates differently to plane wave or Gaussian optical fields. By considering the three typical aerosol particles compositions that lead to haze in the atmosphere, distinctive scattering dynamic were identified for vortex beams as compared to Gaussian beams. Using parameters similar to real world atmospheric conditions, a new aerosol particle model is proposed to efficiently and concisely describe the aerosol scattering. Numerical simulations indicate unique signatures in the scattering dynamics of the vortex beams that can indicate particles composition and also suggest that potentially there is higher optical transmission of vortex beams propagating in certain hazy environments.
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