%0 Journal Article
%T Optical breakdown and filamentation of femtosecond laser pulses propagating in air at a kHz repetition rate
%A Duan Zuo-Liang
%A Chen Jian-Ping
%A Li Ru-Xin
%A Lin Li-Huang
%A Xu Zhi-Zhan
%A <br>段作梁
%A 陈建平
%A 李儒新
%A 林礼煌
%A 徐至展
%J 中国物理 B
%D 2004
%I 
%X We report the experiments on the optical breakdown and filamentation of femtosecond laser pulses propagating in air at a kHz repetition rate and with several hundreds micro-joule-energy. A 10m-long filament and its breakup and merging at the nonlinear focal region produced by modulational instability of femtosecond laser pulses in air are observed. A simple model based on the nonlinear Schr?dinger equation coupled with multiphoton ionization law is presented to explain the several experimental results.
%K filamentation
%K Kerr self-focusing
%K optical-breakdown<br>飞秒激光脉冲
%K 光学击穿
%K Kerr自焦
%K 薛定谔方程
%K 多光子电离
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=0EE9C58EE7377C0FC807B9B203843178&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=38B194292C032A66&sid=3356A7630A93A219&eid=8C27CCA578E52082&journal_id=1009-1963&journal_name=中国物理&referenced_num=1&reference_num=18