摘要
Laser polarization and its intensity inside a filament core play an important role in filament-based applications.However,polarization dependent clamping intensity inside filaments has been overlooked to interpret the polarization-related filamentation phenomena.Here,we report on experimental and numerical investigations of polarization dependent clamping intensity inside a femtosecond filament in air.By adjusting the initial polarization from linear to circular,the clamping intensity is increased by 1.36 times when using a 30 cm focal length lens for filamentation.The results indicate that clamping intensity inside the filament is sensitive to laser polarization,which has to be considered to fully understand polarizationrelated phenomena.
作者
郭豪
董翔
王铁军
张旋
陈娜
尹富康
王依海
张临港
孙海轶
刘军
刘建胜
沈百飞
Olga Kosareva
冷雨欣
李儒新
Hao Guo;Xiang Dong;Tie-Jun Wang;Xuan Zhang;Na Chen;Fukang Yin;Yihai Wang;Lingang Zhang;Haiyi Sun;Jun Liu;Jiansheng Liu;Baifei Shen;Olga Kosareva;Yuxin Leng;Ruxin Li(State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Department of Physics,College of Arts and Science,University of Colorado Boulder,Boulder,CO 80309,USA;College of Physics,Guizhou University,Guiyang 550025,China;Department of Physics,Shanghai Normal University,Shanghai 200234,China;Physics Faculty,Lomonosov Moscow State University,Moscow 119991,Russia)
基金
supported in part by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB16010400)
the International Partnership Program of Chinese Academy of Sciences(Nos.181231KYSB20160045 and 181231KYSB20200033)
the support from the Russian Science Foundation(No.2149-00023)。
