Non-Gaussian statistics of partially coherent light in atmospheric turbulence |
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| Authors: | Hao Ni Chunhao Liang Fei Wang Yahong Chen Sergey APonomarenko Yangjian Cai |
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| Affiliation: | (School of Physical Science and Technology&Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University,Suzhou 215006,China;Shandong Provincial Engineering and Technical Center of Light Manipulation&Shandong Provincial Key Laboratory of Optics and Photonic Device,School of Physics and Electronics,Shandong Normal University,Jinan 250014,China;Department of Electrical and Computer Engineering,Dalhousie University,Halifax,Nova Scotia,B3J 2X4,Canada;Department of Physics and Atmospheric Science,Dalhousie University,Halifax,Nova Scotia,B3H 4R2,Canada) |
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| Abstract: | We derive theoretically and verify experimentally a concise general expression for the normalized intensity correlations(IC) of partially coherent light in a weak atmospheric turbulence in the fast detector measurement regime. The derived relation reveals that the medium turbulence acts, in general, as an additional noise source enhancing the IC of partially coherent beams. The maximum of the beam IC is, in general, enhanced, causing the fields to exhibit super-Gaussian statistics.On the other hand, the relation indicates that turbulence-induced noise is negligible for sufficiently low coherence light,which reveals the condition for the turbulence-free correlation imaging. |
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