Optical gain spectra due to a one-dimensional electron-hole plasma in quantum-wire lasers

被引：0

作者：

Hayamizu, Y ^{[1
]}

Yoshita, M ^{[1
]}

Itoh, H ^{[1
]}

Akiyama, H ^{[1
]}

Pfeiffer, LN ^{[1
]}

West, KW ^{[1
]}

机构：

[1] Univ Tokyo, CREST, JST, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

Physics of Semiconductors, Pts A and B | 2005年 / 772卷

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report the first measurement of evolutional optical gain spectra for various electron-hole densities in T-shaped quantum-wire lasers with high structural uniformity at 5 K. At the high excitation power, a broad absorption peak and a sharp gain peak are observed instead of discrete excitonic absorption peaks. It indicates that an electron-hole plasma yield the gain of quantum-wire lasers. Additionally, spectral shape of the gain peak is symmetric, and shows no similarity with one-dimensional (1D) density of states. It suggests influence of strong Coulomb correlations in a quantum wire.

引用

页码：1575 / 1576

页数：2

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