Energy level schemes for far-infrared quantum well lasers

被引：12

作者：

Lyubomirsky, I ^{[1
]}

Hu, Q

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 03期

关键词：

D O I：

10.1063/1.121815

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We analyze the physics of three-level and Four-level systems for optically pumped far-infrared quantum well lasers. The higher complexity of the four-level system offers a great advantage because it gives more flexibility to design the dipole matrix elements and phonon scattering rates to enhance both? the gain and emission efficiency. We propose a four-level scheme that is superior in gain and emission efficiency by an order of magnitude over previous designs. (C) 1998 American Institute of Physics.

引用

页码：300 / 302

页数：3

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