Suppressed polariton scattering in semiconductor microcavities

被引：55

作者：

Baumberg, JJ

Armitage, A

Skolnick, MS

Roberts, JS

机构：

[1] Cavendish Lab, Hitachi Cambridge Lab, Cambridge CB3 0HE, England

[2] Univ Sheffield, Dept Phys, Sheffield S3 7RH, S Yorkshire, England

[3] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S1 3JD, S Yorkshire, England

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.81.661

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ultrafast time-resolved measurements on a semiconductor microcavity distinguish polariton dynamics dependent on the detuning between the constituent photon and exciton modes. Spectral synthesis allows the injection of specific polariton pulses into the sample. Scattering which results in absorption is found to be suppressed in the lower polariton branch by the combined action of normal mode splitting and motional narrowing. The experimental difference between angle and position tuning demonstrates the role of the polariton dispersion in polariton-polariton interactions.

引用

页码：661 / 664

页数：4

共 20 条

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