Electrically injected spin-polarized vertical-cavity surface-emitting lasers

被引：48

作者：

Holub, M ^{[1
]}

Shin, J ^{[1
]}

Chakrabarti, S ^{[1
]}

Bhattacharya, P ^{[1
]}

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Solid State Elect Lab, Ann Arbor, MI 48109 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2035329

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the design, fabrication, and characterization of an electrically injected, spin-polarized, vertical-cavity surface-emitting laser. We have demonstrated spin injection from the ferromagnetic semiconductor (Ga,Mn)As into In0.2Ga0.8As/GaAs quantum wells, spin transport across a distance of similar to 0.25 mu m for temperatures ranging from 80 to 105 K, and spin detection through optical polarization measurements with coherent light emission. Controlled switching between right- and left-elliptically polarized modes is achieved with a maximum degree of circular polarization of 4.6% measured at 80 K. (c) 2005 American Institute of Physics.

引用

页数：3

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