QUANTUM-ELECTRODYNAMIC EFFECTS IN SEMICONDUCTOR MICROCAVITIES - MICROLASERS AND COHERENT EXCITON-POLARITON EMISSION

被引：48

作者：

YAMAMOTO, Y ^{[1
]}

MATINAGA, F ^{[1
]}

MACHIDA, S ^{[1
]}

KARLSSON, A ^{[1
]}

JACOBSON, J ^{[1
]}

BJORK, G ^{[1
]}

MUKAI, T ^{[1
]}

机构：

[1] STANFORD UNIV, GINZTON LAB, STANFORD, CA 94305 USA

来源：

JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C5期

关键词：

D O I：

10.1051/jp4:1993507

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the spontaneous emission of quantum well excitons in a monolithic microcavity. When the quantum well is excited by a nonresonant pump wave at high above the bandgap, the incoherent spontaneous emission is concentrated on the single resonant mode and the laser threshold is reduced by many orders of magnitude. When the quantum well exciton is excited by a resonant pump wave, the coherent spontaneous emission based on a ''microcavity exciton-polariton'' is observed. The spectral linewidth and the polarization of the pump wave are preserved and the coupling efficiency into the single resonant mode approaches 100%. The microcavity-induced normal mode splitting is observed in the frequency domain by photoexcitation spectrum measurements and in the time domain by pump-probe measurements.

引用

页码：39 / 46

页数：8

共 19 条

[1] RADIATIVE LIFETIME OF FREE-EXCITONS IN QUANTUM-WELLS [J].