%0 Journal Article
%T Induced Diffraction in Phase-Mismatched Second-Harmonic Generation
%A SU Wen-Hua
%A QIAN Lie-Jia
%A FU Xi-Quan
%A YANG Hua
%A ZHU He-Yuan
%A <br>苏文华
%A 钱列加
%A 傅喜泉
%A 杨华
%A 朱鹤元
%J 中国物理快报
%D 2007
%I 
%X We show analytically that in phase-mismatched second-harmonic generation, an effective diffraction is induced at the second-harmonic (SH) frequency. Numerical simulation results agree with the analytical predictions. Compared to the case of linear propagation, the effect of the overall diffraction at the SH frequency becomes doubled due to the induced diffraction, which causes an interesting result that the SH beam width will be larger than that of the fundamental field.
%K 42
%K 65
%K Ky
%K 42
%K 25
%K Fx<br>衍射
%K 谐波
%K 光学
%K 光谱
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=A6F1F92187EC7BB8C04D7904919AEEF0&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=E158A972A605785F&sid=158793AD8125C377&eid=40700C9CB4E84E3B&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0