Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially  coherent electromagnetic beams

doi:10.1088/1674-1056/19/2/029201

中国物理B ›› 2010, Vol. 19 ›› Issue (2): 29201-029201.doi: 10.1088/1674-1056/19/2/029201

• • 上一篇

Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially coherent electromagnetic beams

季小玲, 蒲政才

College of Physics, Sichuan Normal University, Chengdu 610068, China

收稿日期:2009-03-25 修回日期:2009-08-06 出版日期:2010-02-15 发布日期:2010-02-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60778048).

Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially coherent electromagnetic beams

Ji Xiao-Ling (季小玲)^† and Pu Zheng-Cai (蒲政才)

College of Physics, Sichuan Normal University, Chengdu 610068, China

Received:2009-03-25 Revised:2009-08-06 Online:2010-02-15 Published:2010-02-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60778048).

摘要/Abstract

摘要： Based on a recently formulated unified theory of coherence and polarization, a method is described to study turbulence-induced changes in the polarization, the coherence and the spectrum of partially coherent electromagnetic beams on propagation. The electromagnetic Gaussian Schell-model beam is taken as a typical example of partially coherent electromagnetic beams, and the closed-form expressions for the degree of polarization, the degree of coherence and the spectrum of electromagnetic Gaussian Schell-model beams propagating through atmospheric turbulence are derived in the quadratic approximation of Rytov's phase structure function. Some interesting results are obtained, which are illustrated by numerical examples and are explained in physics.

Abstract: Based on a recently formulated unified theory of coherence and polarization, a method is described to study turbulence-induced changes in the polarization, the coherence and the spectrum of partially coherent electromagnetic beams on propagation. The electromagnetic Gaussian Schell-model beam is taken as a typical example of partially coherent electromagnetic beams, and the closed-form expressions for the degree of polarization, the degree of coherence and the spectrum of electromagnetic Gaussian Schell-model beams propagating through atmospheric turbulence are derived in the quadratic approximation of Rytov's phase structure function. Some interesting results are obtained, which are illustrated by numerical examples and are explained in physics.

Key words: unified theory of coherence and polarization, turbulence, partially coherent electromagnetic beams, degree of polarization, degree of coherence, spectrum

中图分类号: (Scattering, polarization)

42.68.Mj

42.68.Ay (Propagation, transmission, attenuation, and radiative transfer) 42.68.Bz (Atmospheric turbulence effects)

季小玲, 蒲政才. Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially coherent electromagnetic beams[J]. 中国物理B, 2010, 19(2): 29201-029201.

Ji Xiao-Ling (季小玲) and Pu Zheng-Cai (蒲政才). Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially coherent electromagnetic beams[J]. Chin. Phys. B, 2010, 19(2): 29201-029201.

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Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially coherent electromagnetic beams

Turbulence-induced changes in degree of polarization, degree of coherence and spectrum of partially coherent electromagnetic beams

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