The effect on on-axis degree of polarization of stochastic vortex light beams by degree of coherence

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• 作者：Ziyang Chen^a ; ^b ; Jixiong Pu^a ; Daomu Zhao^b ; ^{zhaodaomu@yahoo.com" class="auth_mail}
• 关键词：Vortex beams ; Polarization modulation ; Turbulent atmosphere
• 刊名：Optics Communications
• 出版年：15 August 2014
• 年：2014
• 卷：324
• 期：Complete
• 页码：63-68
• 全文大小：1245 K

文摘

The cross-spectral density function of stochastic electromagnetic vortex beams in non-Kolmogorov turbulent atmosphere is presented on the basis of the unified theory of coherence and polarization, and the analytic expressions of the intensity and the degree of polarization of on-axis point are derived. It is shown that the evolution of intensity and polarization of vortex beams in atmosphere is different from that of non-vortex beams, and is influenced by the correlation length and the topological charge of the incident vortex beams. Some important results are concluded and discussed.