POLARITON WAVE PACKET PROPAGATION IN THE EXCITON RESONANCE OF A SEMICONDUCTOR

被引：116

作者：

ULBRICH, RG

FEHRENBACH, GW

机构：

[1] Institut für Physik, Universität Dortmund

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.43.963

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper reports the first experimental observation of slow" pulse propagation in the exciton-polariton resonance of a direct-gap semiconductor. The propagation delay of short light pulses transmitted through a 3.7-m-thick GaAs crystal was measured directly with a cross-correlation technique. Polariton group velocities from cvac3.6 down to cvac2000 were found when the wave-packet center frequency was tuned through the n=1 exciton resonance. © 1979 The American Physical Society."

引用

页码：963 / 966

页数：4

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