Phonon enhanced inverse population in asymmetric double quantum wells

被引：35

作者：

Stroscio, MA

Kisin, M

Belenky, G

Luryi, S

机构：

[1] USA, Res Off, Res Triangle Pk, NC 27709 USA

[2] SUNY Stony Brook, Dept Elect & Comp Engn, Stony Brook, NY 11794 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 21期

关键词：

D O I：

10.1063/1.125317

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Interwell optical-phonon-assisted transitions are studied in an asymmetric double-quantum-well heterostructure comprising one narrow and one wide coupled quantum wells (QWs). We show that the depopulation rate of the lower subband states in the narrow QW can be significantly enhanced thus facilitating the intersubband inverse population, if the depopulated subband is aligned with the second subband of the wider QW, while the energy separation from the first subband is tuned to the highest energy optical-phonon mode. (C) 1999 American Institute of Physics. [S0003-6951(99)03447-6].

引用

收藏

页码：3258 / 3260

页数：3

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