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Temperature dependence of the gain profile for THz quantum cascade lasers

Nelander, Rikard LU and Wacker, Andreas LU (2008) In Applied Physics Letters 92(8). p.1-081102
Abstract
We study the rapid decrease of peak gain in resonant-phonon THz Quantum Cascade Lasers with increasing temperature. The effect of various

microscopic scattering processes on the gain profile as a function of temperature is discussed. We argue that increased broadening, prim

arily due to increased impurity scattering, and not diminishing population inversion, is the main reason for the reduction of peak gain.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
92
issue
8
pages
1 - 081102
publisher
American Institute of Physics
external identifiers
  • wos:000254297300002
  • scopus:40049094197
ISSN
0003-6951
DOI
10.1063/1.2884686
language
English
LU publication?
yes
id
23d6bad2-8751-42ab-becf-aeccb2e76e6d (old id 1023926)
date added to LUP
2008-02-01 17:14:53
date last changed
2017-02-26 03:24:35
@article{23d6bad2-8751-42ab-becf-aeccb2e76e6d,
  abstract     = {We study the rapid decrease of peak gain in resonant-phonon THz Quantum Cascade Lasers with increasing temperature. The effect of various<br/><br>
 microscopic scattering processes on the gain profile as a function of temperature is discussed. We argue that increased broadening, prim<br/><br>
arily due to increased impurity scattering, and not diminishing population inversion, is the main reason for the reduction of peak gain.},
  author       = {Nelander, Rikard and Wacker, Andreas},
  issn         = {0003-6951},
  language     = {eng},
  number       = {8},
  pages        = {1--081102},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Letters},
  title        = {Temperature dependence of the gain profile for THz quantum cascade lasers},
  url          = {http://dx.doi.org/10.1063/1.2884686},
  volume       = {92},
  year         = {2008},
}