https://doi.org/10.1140/epjb/e2019-90636-6
Regular Article
Domain formation and self-sustained oscillations in quantum cascade lasers★
1
Mathematical Physics and NanoLund, Lund University,
22100
Lund, Sweden
2
Synchrotron Radiation Physics and NanoLund, Lund University,
22100
Lund, Sweden
3
Advanced Electronics and Photonics Research Centre, National Research Council,
Ottawa,
ON K1A 0R6, Canada
a e-mail: Andreas.Wacker@fysik.lu.se
Received:
31
October
2018
Received in final form:
5
February
2019
Published online: 3 April 2019
We study oscillations in quantum cascade lasers due to traveling electric field domains, which are observed both in simulations and experiments. These oscillations occur in a range of negative differential resistance and we clarify the condition determining whether the boundary between domains of different electric field can become stationary.
© The Author(s) 2019. This article is published with open access at Springerlink.com
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
