ASYMMETRIC ALGAAS QUANTUM-WELLS FOR 2ND-HARMONIC GENERATION AND QUASIPHASE MATCHING OF VISIBLE-LIGHT IN SURFACE EMITTING WAVE-GUIDES

被引：30
作者：
HARSHMAN, PJ [1 ]
WANG, S [1 ]
机构：
[1] UNIV CALIF BERKELEY,ELECTR RES LAB,BERKELEY,CA 94720
来源：
APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 11期
关键词：
D O I：
10.1063/1.107342
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present an analytical calculation of the second-order susceptibility for second-harmonic generation of visible radiation in asymmetric AlGaAs quantum wells. The calculation suggests that a second-order susceptibility magnitude equal to that of bulk GaAs can be achieved in optimally designed wells. The sign of the second-order susceptibility can be changed by inverting the well asymmetry so that quasiphase matching of the second-harmonic generation is possible. Simulation of a multiquantum well surface emitting waveguide designed for quasiphase-matched second-harmonic generation indicates that second-harmonic conversion efficiency can be improved by over a factor of 100.
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页码：1277 / 1279
页数：3
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