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.

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页码：10786 / 10789

页数：4

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