Turbulence-induced beam wandering during femtosecond laser filamentation

作     者：曾涛 高慧 孙晓东 刘伟伟 

作者机构：Key Laboratory of Optical Information Science and Technology Institute of Modern Optics Nankai UniversityMinistry of Education School of Science Tianjin Polytechnic University School of Electronics Information Engineering Tianjin Polytechnic University Cooperative Innovation Center of Terahertz Science University of Electronic Science and Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2015年第13卷第7期

页      面：27-31页

核心收录：

学科分类：0808[工学-电气工程] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 080704[工学-流体机械及工程] 08[工学] 080103[工学-流体力学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financially supported by National Basic Research Program of China(2011CB808100) the National Natural Science Foundation of China(11174156) the support of the open research funds of the State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics 

主　　题：Laser beams Turbulence 

摘      要：The influence of air turbulence on the transverse wandering of a single femtosecond laser filament is studied by numerical simulation. The results show that the average transverse displacement of the single filament （StI is proportional to the square root of turbulent structure constant and the relations between （St} and the propa- gation distance can be fit by a power function. In addition, by using an axicon as a focusing optics, the wandering of a single filament is suggested to be stronger than the free-propagation case.