%0 Journal Article
%T Analysis of the existence of one-dimensional dark and gray spatial solitons in l ogarithmically nonlinear media<br>对数型非线性介质中一维空间暗、灰孤子的存在性分析
%A Wei Qing
%A Wang Qi
%A Shi Jie-Long
%A <br>卫 青
%A 王 奇
%A 施解龙
%J 物理学报
%D 2003
%I 
%X The existence of dark and gray spatial solitons in logarithmically nonlinear media is investigated. It is shown that both dark and gray solitons are possible in corresponding nonlinear media. The spatial width for dark solitons is analyzed .It is revealed as follows: the beam width decreases dramatically with increasing power when the peak power is much lower, exhibiting the good nonlinear effects in such cases. The variation of beam width is slow at first and then becomes constant when the peak power continuously increases .
%K dark spatial solitons
%K gray spatial solitons
%K logarithmical nonlinear media<br>空间暗孤子，
%K 空间灰孤子，
%K 对数型非线性介质
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=2ACB304CB0EA49A9&yid=D43C4A19B2EE3C0A&vid=286FB2D22CF8D013&iid=DF92D298D3FF1E6E&sid=E521CC33DC22B84E&eid=4BFBB19F1A63A4F0&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=19