POLARITON DYNAMICS IN QUANTUM-WELLS STUDIED BY FEMTOSECOND 4-WAVE-MIXING

被引:41
作者
RAPPEN, T
MOHS, G
WEGENER, M
机构
[1] Institut f̈r Physik, Universität Dortmund
来源
PHYSICAL REVIEW B | 1993年 / 47卷 / 15期
关键词
D O I
10.1103/PhysRevB.47.9658
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The dynamics of the polarization on the polariton branches can be studied directly by spectrally resolving the diffracted wave in femtosecond four-wave mixing. This is exemplified on semiconductor multiple quantum wells. The transition from excitonlike to polaritonlike behavior is accomplished experimentally by means of a strong perpendicular magnetic field that significantly influences the oscillator strength and hence the longitudinal-transverse splitting. Solutions of the Maxwell-Bloch equations are in qualitative agreement with the experiment.
引用
收藏
页码:9658 / 9662
页数:5
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