Lasing via ground-subband transitions in V-groove quantum wire lasers

被引：7

作者：

Sirigu, L ^{[1
]}

Degiorgi, L ^{[1
]}

Oberli, DY ^{[1
]}

Rudra, A ^{[1
]}

Kapon, E ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Micro & Optoelect, Dept Phys, CH-1015 Lausanne, Switzerland

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2000年 / 7卷 / 3-4期

关键词：

quantum wire lasers; one-dimensional semiconductors; excitons; disorder;

D O I：

10.1016/S1386-9477(99)00368-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present direct evidence of stimulated emission from the one-dimensional ground subband in optically pumped GaAs/AlGaAs V-groove quantum wire structures. We find that the lasing is sustained by excitonic gain. Spectra detected for low excitation power and above the lasing threshold demonstrate that lasing originates from localized excitons. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：513 / 516

页数：4

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