Giant Enhancement of Second Harmonic Generation at Photonic Band Gap Edges

Second harmonic generation （SHG） in one-dimensional nonlinear photonic crystals made from periodically alternating ferroelectric and dielectric layers is investigated by means of the transfer matrix method. When tuned at the photonic band gap （PBG） edges, the fundamental wave and second harmonic wav...

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Bibliographic Details
Published inChinese physics letters Vol. 27; no. 11; pp. 107 - 110
Main Author 马冬莉 任明亮 窦军红 李志远
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.11.2010
Subjects
PBG结构
一维光子晶体
二次谐波产生
光子带隙
转移矩阵法
非线性光子晶体
非线性光学效应
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/27/11/114209

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Summary:Second harmonic generation （SHG） in one-dimensional nonlinear photonic crystals made from periodically alternating ferroelectric and dielectric layers is investigated by means of the transfer matrix method. When tuned at the photonic band gap （PBG） edges, the fundamental wave and second harmonic wave slow down, and the filed enhancement takes place within the nonlinear photonic crystal. The phase mismatching can be compensated for to some extent and the second harmonic process will be enhanced. Numerical results show that the enhancement of SHG in the PBG structure can be up to four orders of magnitude compared with the traditional quasi-phase-matching structure.
Bibliography:11-1959/O4
O734
O484.41
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/11/114209