Midinfrared emission from coupled Wannier-Stark ladders in semiconductor superlattices

被引：8

作者：

Scamarcio, G ^{[1
]}

Capasso, F ^{[1
]}

Hutchinson, AL ^{[1
]}

Sivco, DL ^{[1
]}

Cho, AY ^{[1
]}

机构：

[1] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.57.R6811

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Generation of midinfrared electroluminescence associated with transitions between conduction-band Wannier-Stark ladder states in strongly coupled semiconductor superlattices is reported. Both intraladder and interladder transitions, in the two regimes of strong electric-field-induced localization and resonance-induced delocalization, are observed. The difference between this incoherent spontaneous emission mechanism and the coherent spontaneous radiation from Bloch oscillations is discussed.

引用

页码：R6811 / R6814

页数：4

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