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Analysis of High-Performing Terahertz Quantum Cascade Lasers

Rindert, Viktor LU orcid ; Önder, Ekin LU and Wacker, Andreas LU orcid (2022) In Physical Review Applied 18(4).
Abstract

Detailed simulations for terahertz quantum cascade lasers based on two-well designs are presented. We reproduce the maximal operation temperatures observed and attribute the degradation with temperature to the occupation of parasitic levels and thermal backfilling. Furthermore, we demonstrate that the current injection can be conveniently studied by using states, which combine energy selectivity and spatial localization. Improving the injection allows achievement of higher maximal operation temperatures around 265 K.

Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Applied
volume
18
issue
4
article number
L041001
publisher
American Physical Society
external identifiers
  • scopus:85141648734
ISSN
2331-7019
DOI
10.1103/PhysRevApplied.18.L041001
project
Quantum Cascade Lasers beyond general paradigms
language
English
LU publication?
yes
id
60027264-79b3-4c11-9d15-520449c6b744
date added to LUP
2022-12-05 09:19:06
date last changed
2023-12-05 22:19:55
@article{60027264-79b3-4c11-9d15-520449c6b744,
  abstract     = {{<p>Detailed simulations for terahertz quantum cascade lasers based on two-well designs are presented. We reproduce the maximal operation temperatures observed and attribute the degradation with temperature to the occupation of parasitic levels and thermal backfilling. Furthermore, we demonstrate that the current injection can be conveniently studied by using states, which combine energy selectivity and spatial localization. Improving the injection allows achievement of higher maximal operation temperatures around 265 K.</p>}},
  author       = {{Rindert, Viktor and Önder, Ekin and Wacker, Andreas}},
  issn         = {{2331-7019}},
  language     = {{eng}},
  number       = {{4}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Applied}},
  title        = {{Analysis of High-Performing Terahertz Quantum Cascade Lasers}},
  url          = {{http://dx.doi.org/10.1103/PhysRevApplied.18.L041001}},
  doi          = {{10.1103/PhysRevApplied.18.L041001}},
  volume       = {{18}},
  year         = {{2022}},
}