Third-harmonic generation in a noncentrosymmetrical crystal: direct third-order or cascaded second-order process?

被引：11

作者：

Takagi, Y ^{[1
]}

Muraki, S ^{[1
]}

机构：

[1] Himeji Inst Technol, Dept Mat Sci, Kamigori, Hyogo 6781297, Japan

来源：

JOURNAL OF LUMINESCENCE | 2000年 / 87-9卷

关键词：

third-harmonic generation (THG); nonlinear crystal; phasematching;

D O I：

10.1016/S0022-2313(99)00445-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An efficient optical third-harmonic generation has been observed in a single piece of nonlinear crystal. A good fit to the calculated phasematching angles verifies that the cascaded process of second-harmonic conversion and sum-frequency mixing yields a reasonable conversion efficiency for third-harmonic generation regardless of phase mismatching in the stage of second-harmonic conversion. A calculation of the effective nonlinear susceptibilities also concludes that two different types of phase-matching are responsible for the observed efficient conversion. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：865 / 867

页数：3

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