Effects of coherence on anisotropic electromagnetic Gaussian-Schell model beams on propagation.
An analytical formula for the cross-spectral density matrix of the electric field of anisotropic electromagnetic Gaussian-Schell model beams propagating in free space is derived by using a tensor method. The effects of coherence on those beams are studied. It is shown that two anisotropic stochastic electromagnetic beams that propagate from the source plane z=0 into the half-space z>0 may have different beam shapes (i.e., spectral density) and states of polarization in the half-space, even though they have the same beam shape and states of polarization in the source plane. This fact is due to a difference in the coherence properties of the field in the source plane.
Information Optics Laboratory, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Jiading, Shanghai 201800, China. hannaiwanghua@yahoo.com.cn
Hua
H
Wang
Xiangzhao
X
Wang
Aijun
A
Zeng
Kun
K
Yang