[1]王海燕,李相银.离轴扭曲各向异性高斯-谢尔模型光束在湍流大气中的传播[J].南京理工大学学报(自然科学版),2009,(02):199-203.
 WANG Hai-yan,LI Xiang-yin.Propagation of Decentered Twist Anisotropic Gaussian-Schell Model Beam in Turbulent Atmosphere[J].Journal of Nanjing University of Science and Technology,2009,(02):199-203.
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离轴扭曲各向异性高斯-谢尔模型光束在湍流大气中的传播
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2009年02期
页码:
199-203
栏目:
出版日期:
2009-04-30

文章信息/Info

Title:
Propagation of Decentered Twist Anisotropic Gaussian-Schell Model Beam in Turbulent Atmosphere
作者:
王海燕;李相银;
南京理工大学理学院, 江苏南京210094
Author(s):
WANG Hai-yanLI Xiang-yin
School of Sciences,NUST,Nanjing 210094,China
关键词:
光束传输 离轴扭曲各向异性高斯-谢尔模型光束 湍流大气 复曲率张量
Keywords:
laser propagation decentered twisted anisotropic Gaussian-Schell model beams turbulent atmosphere complex curvature tensors
分类号:
O436
摘要:
该文基于广义惠更斯-菲涅耳原理,利用部分相干光复曲率张量推导出了离轴扭曲各向异性高斯-谢尔模型光束在湍流大气中传播的解析表达式,详细研究了该类光束在湍流大气中的传播特性。研究表明:离轴扭曲各向异性高斯-谢尔模型光束光斑在湍流大气中将退化为非离轴高斯圆形光斑;离轴参数与传播距离之间的关系曲线随着湍流强度的减弱、扭曲参数的增大以及光源相干性减弱变化缓慢。结果还表明,利用部分相干光复曲率张量分析各类高斯-谢尔光束在大气湍流中的传播和变换特性是一种简单有效的方法。
Abstract:
Based on the extended Huygens-Fresnel integral,analytical formulas are derived for the propagation of a decentered twisted anisotropic Gaussian-Schell model(DTAGSM) beam in a turbulent atmosphere by the use of partially coherent complex curvature tensor.Propagation properties of a DTAGSM beam in a turbulent atmosphere are investigated in detail.It is found that a DTAGSM beam becomes a circular and non-decentered beam in a turbulent atmosphere.Decentered parameter along with the propagation distance decreases more slowly as turbulent strength decreases,twisted parameters increase and coherence slows down.Using partially coherent complex curvature tensor in treating the propagation and transformation of all classes of Gaussian-Schell model beams is a useful and convenient method.

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备注/Memo

备注/Memo:
作者简介: 王海燕( 1976- ) , 女, 博士生, 讲师, 主要研究方向: 激光光束在大气湍流中的传播, E-m ail:njustwhy@ m a il.njust. edu. cn; 通讯作者: 李相银( 1949 - ), 男, 教授, 博士生导师, 主要研究方向: 激光技术及应用, E-m a il: xyl@ mail.n just. edu. cn。
更新日期/Last Update: 2012-11-19