THEORY OF NONLINEAR-OPTICAL ABSORPTION IN COUPLED-BAND QUANTUM-WELLS WITH MANY-BODY EFFECTS

被引：28
作者：
PEREIRA, MF
BINDER, R
KOCH, SW
机构：
[1] UNIV ARIZONA,CTR OPT SCI,TUCSON,AZ 85721
[2] UNIV ARIZONA,DEPT PHYS,TUCSON,AZ 85721
来源：
APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 03期
关键词：
D O I：
10.1063/1.111180
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nonlinear optical absorption spectra and refractive index changes are computed for coupled-band semiconductor quantum wells by numerically solving the interband polarization equation. The theory combines band-structure engineering with many-body techniques and is applied to lattice-matched GaAs-AlGaAs and strained InGaAs-GaAs systems with carrier densities ranging from the excitonic to the gain regimes. Good agreement with recent experimental results is found.
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页码：279 / 281
页数：3
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