LASING FROM EXCITONS IN QUANTUM WIRES

被引：285

作者：

WEGSCHEIDER, W

PFEIFFER, LN

DIGNAM, MM

PINCZUK, A

WEST, KW

MCCALL, SL

HULL, R

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.71.4071

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Stimulated optical emission from the lowest exciton state in atomically smooth semiconductor quantum wires is observed for the first time. The wires are formed by the inverted perpendicular intersection of two 7 nm GaAs quantum wells. The optical emission wavelength is nearly independent of pump levels. This absence of band-gap renormalization in the laser emission indicates a marked increase in the stability of the exciton in one dimension.

引用

页码：4071 / 4074

页数：4

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