INTERSUBBAND-TRANSITION-INDUCED PHASE-MATCHING

被引：14

作者：

ALMOGY, G

SEGEV, M

YARIV, A

机构：

[1] California Institute of Technology, Pasadena, CA

[2] Department of Electrical Engineering, Advanced Center for Photonics, Optoelectronic Materials and Princeton Material Institute, Princeton University, Princeton, NJ

来源：

OPTICS LETTERS | 1994年 / 19卷 / 16期

关键词：

D O I：

10.1364/OL.19.001192

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We suggest the use of the refractive-index changes associated with the intersubband transitions in quantum wells for phase matching in nonlinear materials. An improvement in the conversion efficiency of mid-IR second-harmonic generation by almost 2 orders of magnitude over non-phase-matched bulk GaAs is predicted. We also show that the linear phase contributions of intersubband transitions used for resonant enhancement of second-harmonic generation must be considered, as they could limit the conversion efficiency by increasing the phase mismatch on one hand or offset the bulk's dispersion and lead to phase matching on the other.

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收藏

页码：1192 / 1194

页数：3

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