INTERBAND ABSORPTION IN QUANTUM WIRES .1. ZERO-MAGNETIC-FIELD CASE

被引：192

作者：

BOCKELMANN, U ^{[1
]}

BASTARD, G ^{[1
]}

机构：

[1] TECH UNIV MUNICH,WALTER SCHOTTKY INST,W-8046 GARCHING,GERMANY

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.45.1688

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe the theory of interband transitions in quasi-one-dimensional semiconductor structures. It is based on the effective-mass approximation and takes into account the mixing of the heavy-hole and the light-hole states in the valence band. The dipole matrix clement for optical transitions between the valence-band and the conduction-band states is derived for different linear photon polarizations with respect to the wire orientation. The theory is applied to single wires and periodic arrays of coupled wires exhibiting spatially direct or indirect optical transitions. We also study the influence of sample imperfections by calculating the optical properties of a statistical ensemble of confinement potentials exhibiting random fluctuations.

引用

页码：1688 / 1699

页数：12

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