Open AccessSpatial distributions of the energy and energy flux density of partially coherent electromagnetic beams in atmospheric turbulence
Author(s) -
Jianlong Li,
Baida Lü,
Sijia Zhu
Publication year - 2009
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.17.011399
Subject(s) - physics , energy flux , turbulence , computational physics , electromagnetic radiation , flux (metallurgy) , atmospheric turbulence , spectral density , optics , mechanics , quantum mechanics , materials science , statistics , mathematics , metallurgy
The formulas of the energy and energy flux density of partially coherent electromagnetic beams in atmospheric turbulence are derived by using Maxwell's equations. Expressions expressed by elements of electric cross spectral density matrixes of the magnetic and the mutual cross spectral density matrix are obtained for the partially coherent electromagnetic beams. Taken the partially coherent Cosh-Gaussian (ChG) electromagnetic beam as a typical example, the spatial distributions of the energy and energy flux density in atmospheric turbulence are numerically calculated. It is found that the turbulence shows a broadening effect on the spatial distributions of the energy and energy flux density. Some interesting results are obtained and explained with regard to their physical nature.