Laser threshold reduction in a spintronic device
Laser threshold reduction in a spintronic device
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DOI：
10.1063/1.1583145
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发表时间：
2003-06-23
影响因子：
4
通讯作者：
Oestreich, M
中科院分区：
文献类型：
--
作者：
Rudolph, J;Hägele, D;Oestreich, M
我们证明了通过光泵浦增益介质中的自旋极化电子来降低半导体激光器的阈值。偏振电子选择性地耦合到两种可能的激光模式之一，与传统的非偏振电子泵浦相比，可有效地将阈值降低高达 50%。我们从理论上证明我们的概念可以推广到电泵浦激光器。 (C) 2003 年美国物理研究所。
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.