RELAXATION OF EXCITONS IN CORRUGATED GAAS/ALAS SUPERLATTICES

被引：13
|
作者：
JIANG, DS
ZHOU, XQ
OESTREICH, M
RUHLE, WW
NOTZEL, R
PLOOG, K
机构：
[1] Max-Planck-Institut für Festkörperforschung, D-70569 Stuttgart
来源：
PHYSICAL REVIEW B | 1994年 / 49卷 / 15期
关键词：
D O I：
10.1103/PhysRevB.49.10786
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report time-resolved spectroscopy on exciton luminescence in low-dimensional systems. The reduction of dimensionality from two in quantum wells to one in corrugated superlattices can completely change the initial relaxation process. In the one-dimensional system exciton-phonon scattering is, even at high exciton densities, faster than exciton-exciton scattering since the latter is reduced whereas the former is enhanced if the final state falls into the singularity in the density of one-dimensional states.
引用
收藏
页码：10786 / 10789
页数：4
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