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).

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页码：9269 / 9272

页数：4

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