文献类型：期刊文献

英文题名：Average intensity and spreading of an astigmatic sinh-Gaussian beam with small beam width propagating in atmospheric turbulence

作者：Zhu, Jie Zhu, Kaicheng Tang, Huiqin Xia, Hui

第一作者：朱洁

通信作者：Zhu, KC[1]

机构：[1]Guizhou Inst Technol, Coll Sci, Guiyang, Guizhou, Peoples R China;[2]Cent S Univ, Sch Phys Sci & Technol, Changsha, Hunan, Peoples R China

第一机构：贵州理工学院理学院

通信机构：corresponding author), Cent S Univ, Sch Phys Sci & Technol, Changsha, Hunan, Peoples R China.

年份：2017

卷号：64

期号：18

起止页码：1915-1921

外文期刊名：JOURNAL OF MODERN OPTICS

收录：;EI(收录号：20172003676042);Scopus(收录号：2-s2.0-85019253448);WOS:【SCI-EXPANDED(收录号:WOS:000406562300014)】；

语种：英文

外文关键词：Astigmatic sinh-Gaussian beam; turbulent atmosphere; dark hollow beam

摘要：Propagation properties of astigmatic sinh-Gaussian beams (ShGBs) with small beam width in turbulent atmosphere are investigated. Based on the extended Huygens-Fresnel integral, analytical formulae for the average intensity and the effective beam size of an astigmatic ShGB are derived in turbulent atmosphere. The average intensity distribution and the spreading properties of an astigmatic ShGB propagating in turbulent atmosphere are numerically demonstrated. The influences of the beam parameters and the structure constant of atmospheric turbulence on the propagation properties of astigmatic ShGBs are also discussed in detail. In particular, for sufficiently small beam width and sinh-part parameter as well as suitable astigmatism, we show that the average intensity pattern converts into a perfect dark-hollow profile from initial two-petal pattern when ShGBs with astigmatic aberration propagate through atmospheric turbulence.