SPIN-RESOLVED FEMTOSECOND MAGNETOEXCITON INTERACTIONS IN GAAS QUANTUM-WELLS

被引：43

作者：

STARK, JB ^{[1
]}

KNOX, WH ^{[1
]}

CHEMLA, DS ^{[1
]}

机构：

[1] AT&T BELL LABS,HOLMDEL,NJ 07733

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.46.7919

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use femtosecond nonlinear spectroscopy and high magnetic fields to study quantum-well excitonic states of well-defined angular momentum character. Our results show that the femtosecond nonlinear optical response is governed by exciton-exciton interactions that depend on the angular momentum character of the initially excited distribution. Remarkably, optically active excitons at high magnetic field undergo spin relaxation to an optically inactive state.

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页码：7919 / 7922

页数：4

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