%0 Journal Article
%T SECOND-HARMONIC GENERATION SUSCEPTIBILITIES OF A NITRIDE COUPLING QUANTUM WELL: EFFECTS OF PIEZOELECTRICITY AND SPONTANEOUS POLARIZATION<br>氮化物耦合量子阱中的二次谐波产生极化率:压电与自发极化效应
%A ZHANG Li
%A <br>张立
%J 红外与毫米波学报
%D 2007
%I Science Press
%X The second-harmonic generation(SHG) susceptibility of a wurtzite GaN/InxGa1-xN coupling quantum well(CQW) with strong built-in electric field was theoretically investigated.The calculated results reveal that the resonant SHG coefficients reach the order of magnitude of 10-7 m/V and the SHG coefficients are not monotonic functions of the well width,barrier width and the doped concentration of the CQW systems.Our results also show that a strong SHG coefficient can be obtained in the nitride CQW by choosing optimized structural parameters and doped fraction.
%K density-matrix method
%K nitride coupling quantum well
%K built-in electric field
%K second-harmonic generation<br>密度矩阵方法
%K 氮化物耦合量子阱
%K 内建电场
%K 二次谐振波产生
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=FB7273D67DE79078384E65AFDA445AB2&yid=A732AF04DDA03BB3&vid=96C778EE049EE47D&iid=E158A972A605785F&sid=4B1FFFA116F7AE3B&eid=627456E7977439A4&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=16