LINEAR AND NONLINEAR OPTICAL-PROPERTIES OF (GAAS)M (ALAS)N SUPERLATTICES

被引：25
|
作者：
GHAHRAMANI, E
MOSS, DJ
SIPE, JE
机构：
[1] UNIV TORONTO,ONTARIO LASER & LIGHTWAVE RES CTR,TORONTO M5S 1A7,ONTARIO,CANADA
[2] NATL RES COUNCIL CANADA,OTTAWA K1A 0R6,ONTARIO,CANADA
来源：
PHYSICAL REVIEW B | 1991年 / 43卷 / 11期
关键词：
D O I：
10.1103/PhysRevB.43.9269
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a full-band-structure calculation of frequency-dependent second-harmonic generation in short-period (GaAs)m/(AlAs)n superlattices. We use a linear combination of Gaussian orbitals technique, in conjunction with a linearized sampling method, to obtain the dielectric function epsilon(omega) and the second-order optical response coefficient chi(2)(-2-omega;omega,omega). Our results show that the effect of the unique superlattice transitions is more pronounced in chi(2)(-2-omega;omega,omega) than in epsilon(omega).
引用
收藏
页码：9269 / 9272
页数：4
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