Document Type
Article
Publication Date
3-23-1998
Abstract
We propose a novel intersubband laser based on transition between the ground-state heavy-hole subband (HH1) and light-hole subband (LH1) in a k-space region where the light-hole effective mass is inverted. The laser structure can be electrically pumped with a simple quantum cascade scheme. Our calculation shows that with only a small fraction of the carrier population in the upper subband (LH1), it is possible to achieve population inversion between the two subbands locally in K space where the light-hole effective mass is inverted. Optical gain in excess of 150/cm can be achieved with a pumping current density on the order to 100 A/cm2 at the temperature of liquid nitrogen.
Recommended Citation
Sun, Greg; Lu, Y.; and Khurgin, Jacob B., "Valence intersubband lasers with inverted light-hole effective mass" (1998). Physics Faculty Publications. 30.
https://scholarworks.umb.edu/physics_faculty_pubs/30
Publisher
American Institute of Physics
Rights
Copyright 1998 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Comments
The following article appeared in Applied Physics Letters, vol. 72, issue 12 (1998) and may be found at http://dx.doi.org/10.1063/1.120610.
Copyright 1998 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.