Scattering of a random electromagnetic beam from a random medium with spectral dependence.
Scattering of a random electromagnetic beam from a random medium with spectral dependence.
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DOI：
10.1364/oe.25.017114
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发表时间：
2017-07
期刊：
影响因子：
3.8
通讯作者：
Jianyang Zhou;Daomu Zhao
中科院分区：
文献类型：
--
作者：
Jianyang Zhou;Daomu Zhao
引入了一种广义随机介质，其有效半径和相关长度均与入射光波长有关。利用随机电磁波束的广义Stokes参数来表征随机介质产生的远区散射场的统计特性。结果表明，介质的有效半径和相关长度对波长的依赖关系可以影响散射场的强度、相干性和偏振特性。此外，在介质发光调制和光束发光调制的情况下，散射场的分布也有很大的不同。
A generalized random medium is introduced of which the effective radius and the correlation length are assumed to depend on the wavelength of the incident light. The generalized Stokes parameters of a random electromagnetic beam are employed to characterize the statistical properties of the far-zone scattered field generated by the introduced random medium. It is shown that the dependence of the effective radius and the correlation length of a medium on the wavelength can affect the behaviors of the intensity, coherence and polarization of the scattered field. Besides, the distributions of the scattered field are found to have many differences between the situations of medium-led modulation and beam-led modulation.