In situ Measurement of Intense Optical Fields via Strong Field Ionization  

作　　者：Fan Xiao Li Wang Guangru Bai Zhigang Zheng Xu Sun Tiefeng Ji Yuchen Sun Jiacan Wang Xiaowei Wang Zengxiu Zhao 

机构地区：[1]Department of Physics,National University of Defense Technology,Changsha 410073,China [2]Hunan Key Laboratory of Extreme Matter and Applications,National University of Defense Technology,Changsha 410073,China [3]College of Systems Engineering,National University of Defense Technology,Changsha 410073,China

出　　处：《Chinese Physics Letters》2025年第4期50-54,共5页中国物理快报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12234020,12450403,and 12374263)。

摘　　要：This letter reports an all-optical measurement of laser electric field based on strong field ionization.By measuring the attosecond transient absorption spectra of krypton ions subjected to strong laser fields,we obtain the time-dependent effective valence-hole population,from which the driving laser waveform is retrieved with particle swarm optimization and genetic algorithm under strong-field approximation.

关 键 词：genetic algorithm krypton ions driving laser waveform situ measurement attosecond transient absorption spectra strong field ionizationby particle swarm optimization strong laser fieldswe 

分 类 号：O562[理学—原子与分子物理]