%0 Journal Article
%T Experimental study on emission spectra of air plasma induced by femtosecond laser pulses<br>飞秒激光空气等离子体发射光谱的实验研究
%A Zhu Zhu-Qing
%A Wang Xiao-Lei
%A <br>朱竹青
%A 王晓雷
%J 物理学报
%D 2011
%I 
%X The emission spectra produced in ambient air with focused strong femtosecond laser pulses are studied experimentally. The results show the emission spectrum presents the short-wavelength continuum spectrum with stronger intensity(cutoff wavelength 340 nm) and long-wavelength line spectrum with less weak intensity(near 800 nm). A similar spectrum shape can be acquired with fixed pulse width 50 fs and adjustable laser pulse energy. When the pulse energy is 1 mJ and the pulse width increases from 50 fs to 1ps, the peak value of continuum spectrum located in 500 nm wavelength becomes strong and gradually presents the line spectrum characteristics.
%K femtosecond laser pulses
%K laser-induced air plasma
%K emission spectra
%K line spectrum<br>飞秒激光
%K 激光空气等离子体
%K 发射光谱
%K 线光谱
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=95DC14E13B3C2ACC7C7804DA68C0F580&yid=9377ED8094509821&vid=BFE7933E5EEA150D&iid=5D311CA918CA9A03&sid=CEB7D60910B820CF&eid=CEB7D60910B820CF&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=17