Scattering of an electromagnetic light wave from a quasi-homogeneous medium with semisoft boundary

作者：Zhou Jianyang; Zhao Daomu^*

来源：Physics Letters, Section A: General, Atomic and Solid State Physics , 2016, 380(37): 2999-3006.

DOI：10.1016/j.nutres.2016.07.003

• Light scattering
• A quasi-homogeneous medium
• The spectral density
• The spectral degree of coherence
• The spectral degree of polarization

Based on the first-order Born approximation, the scattering of an electromagnetic plane wave from a relatively more realistic random medium, a quasi-homogeneous medium with semisoft boundary, has been investigated. The analytic expressions for the spectral density, the spectral degree of coherence and the spectral degree of polarization have been derived, and the effects of the characteristics of the medium and the polarization of the incident light wave on the far-zone scattered field are determined. The numerical simulations indicate that, with the increasing of the edge softness M of the medium, the spectral density presents a pattern with interference fringes, and the number, position and width of interference fringes can be modified by the parameter. It is also found that there is an obvious value saltation in the coherence profile. Besides, unlike the intensity and the coherence are significantly affected by the properties of the medium, the polarization of the scattered field is irrelevant to them due to the quasi-homogeneity and isotropy of the medium, and it is only connected with the polarization of the incident light.

• 出版日期2016-8-26
• 单位浙江大学