Scintillation properties of dark hollow beams in a weak turbulent atmosphere

被引：76
|
作者：
Chen, Y. [2 ]
Cai, Y. [1 ]
Eyyuboglu, H. T. [3 ]
Baykal, Y. [3 ]
机构：
[1] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, Max Planck Res Grp, D-91058 Erlangen, Germany
[2] Zhejiang Univ, Dept Opt Engn, Hangzhou 310027, Peoples R China
[3] Cankaya Univ, Dept Elect & Commun Engn, TR-06530 Ankara, Turkey
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2008年 / 90卷 / 01期
关键词：
D O I：
10.1007/s00340-007-2825-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
引用
收藏
页码：87 / 92
页数：6
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