Scintillation properties of dark hollow beams in a weak turbulent atmosphere |
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| Authors: | Y Chen Y Cai HT Eyyubo?lu Y Baykal |
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| Institution: | 1.Department of Optical Engineering,Zhejiang University,Hangzhou,P.R. China;2.Max Planck Research Group, Institute of Optics, Information and Photonics,University of Erlangen,Erlangen,Germany;3.Department of Electronic and Communication Engineering,?ankaya University,Balgat, Ankara,Turkey |
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| Abstract: | The on-axis scintillation index for a circular dark hollow beam (DHB) propagating in a weak turbulent atmosphere is formulated,
and the scintillation properties of a DHB are investigated in detail. The scintillation index for a DHB reduces to the scintillation
index for a Gaussian beam, an annular beam and a flat-topped beam under certain conditions. It is found that the scintillation
index of a DHB is closely related to the beam parameters and can be lower than that of a Gaussian beam, an annular beam and
a flat-topped beam in a weak turbulent atmosphere at smaller waist sizes and longer propagation lengths.
PACS 42.25.Bs; 42.68.Ay |
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| Keywords: | |
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