Open AccessReciprocity relations of an electromagnetic light wave on scattering from a quasi-homogeneous anisotropic medium
Author(s) -
Hao Wu,
Xun Pan,
Zhanghang Zhu,
Xiaoling Ji,
Tao Wang
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.011297
Subject(s) - physics , scattering , reciprocity (cultural anthropology) , optics , fourier transform , polarization (electrochemistry) , degree of coherence , anisotropy , coherence (philosophical gambling strategy) , coherence theory , light scattering , stokes parameters , electromagnetic radiation , computational physics , coherence length , quantum mechanics , psychology , social psychology , chemistry , superconductivity , beam (structure)
The relationship between the properties of the far-zone field and the characteristics of the scattering medium for an electromagnetic light wave on scattering from a quasi-homogeneous anisotropic medium is investigated. It is shown that the spectral density and the spectral degree of coherence of the scattered field can be factorized as a product of two parts, the one is dependent on the polarization of the incident field, and the other is dependent on the characteristics of the medium. The medium-dependent part displays two reciprocity relations, i.e. the normalized spectral density of the scattered field is proportional to the Fourier transform of the normalized correlation coefficient of the scattering potential, and the spectral degree of coherence of the scattered field is proportional to the Fourier transform of the strength of scattering potential. An example of Gaussian-correlated, quasi-homogeneous, anisotropic medium is discussed to illustrate these reciprocity relations.