Laser threshold reduction in a spintronic device

被引：167

作者：

Rudolph, J

Hägele, D

Gibbs, HM

Khitrova, G

Oestreich, M

机构：

[1] Leibniz Univ Hannover, Inst Festkorperphys, D-30167 Hannover, Germany

[2] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 25期

关键词：

D O I：

10.1063/1.1583145

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a reduction of the threshold of a semiconductor laser by optically pumping spin-polarized electrons in the gain medium. Polarized electrons couple selectively to one of two possible lasing light modes which effectively reduces the threshold by up to 50% compared to conventional pumping with unpolarized electrons. We theoretically show that our concept can be generalized to an electrically pumped laser. (C) 2003 American Institute of Physics.

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页码：4516 / 4518

页数：3

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