Simulating terahertz quantum cascade lasers: Trends from samples from different labs
Winge, David LU ; Franckie, Martin LU and Wacker, Andreas LU
(2016)
In Journal of Applied Physics
120.
- Abstract
- We present a systematic comparison of the results from our non-equilibrium Green's function formalism with a large number of AlGaAs-GaAs terahertz quantum cascade lasers previously published in the literature. Employing identical material and simulation parameters for all samples, we observe that the discrepancies between measured and calculated peak currents are similar for samples from a given group. This suggests that the differences between experiment and theory are partly due to a lacking reproducibility for devices fabricated at different laboratories. Varying the interface roughness height for different devices, we find that the peak current under lasing operation hardly changes, so that differences in interface quality appear not... (More)
- We present a systematic comparison of the results from our non-equilibrium Green's function formalism with a large number of AlGaAs-GaAs terahertz quantum cascade lasers previously published in the literature. Employing identical material and simulation parameters for all samples, we observe that the discrepancies between measured and calculated peak currents are similar for samples from a given group. This suggests that the differences between experiment and theory are partly due to a lacking reproducibility for devices fabricated at different laboratories. Varying the interface roughness height for different devices, we find that the peak current under lasing operation hardly changes, so that differences in interface quality appear not to be the sole reason for the lacking reproducibility. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/b48a31ce-6d36-499d-a604-bf4cf7f77ee1
- author
- Winge, David
LU
; Franckie, Martin
LU
and Wacker, Andreas
LU
- organization
- publishing date
- 2016-09-16
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Applied Physics
- volume
- 120
- article number
- 114302
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- scopus:84988470791
- wos:000384573200014
- ISSN
- 0021-8979
- DOI
- 10.1063/1.4962646
- language
- English
- LU publication?
- yes
- id
- b48a31ce-6d36-499d-a604-bf4cf7f77ee1
- date added to LUP
- 2016-10-27 14:31:19
- date last changed
- 2023-11-07 19:23:46
@article{b48a31ce-6d36-499d-a604-bf4cf7f77ee1,
abstract = {{We present a systematic comparison of the results from our non-equilibrium Green's function formalism with a large number of AlGaAs-GaAs terahertz quantum cascade lasers previously published in the literature. Employing identical material and simulation parameters for all samples, we observe that the discrepancies between measured and calculated peak currents are similar for samples from a given group. This suggests that the differences between experiment and theory are partly due to a lacking reproducibility for devices fabricated at different laboratories. Varying the interface roughness height for different devices, we find that the peak current under lasing operation hardly changes, so that differences in interface quality appear not to be the sole reason for the lacking reproducibility.}},
author = {{Winge, David and Franckie, Martin and Wacker, Andreas}},
issn = {{0021-8979}},
language = {{eng}},
month = {{09}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Journal of Applied Physics}},
title = {{Simulating terahertz quantum cascade lasers: Trends from samples from different labs}},
url = {{https://lup.lub.lu.se/search/files/21231993/winge_JAP2016.pdf}},
doi = {{10.1063/1.4962646}},
volume = {{120}},
year = {{2016}},
}