Demic, A orcid.org/0000-0003-1335-6156, Grier, A orcid.org/0000-0003-1044-3166, Ikonic, Z orcid.org/0000-0003-4645-377X et al. (7 more authors) (2017) Infinite-period density-matrix model for terahertz-frequency quantum cascade lasers. IEEE Transactions on Terahertz Science & Technology, 7 (4). pp. 368-377. ISSN 2156-342X
Abstract
In this work we present a density matrix model which considers an infinite quantum cascade laser (QCL) and models transport via a nearest neighbor approximation. We will discuss derivation of output parameters of the model in detail and show the direct mathematical link to semi-classical rate equation approach. This model can be extended to an arbitrary number of states in the QCL period, without a priori specification of upper and lower lasing level. Application of the model to various QCL structures is possible, including bound-to-continuum structures which typically employ a large number of states per period. The model has been applied to a 2 THz bound-to-continuum QCL and a very good agreement with measured V-I characteristics is obtained along with qualitative agreement with measured L-I characteristics in terms of dynamic range.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ |
Keywords: | quantum cascade lasers; submillimeter wave technology |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Funding Information: | Funder Grant number NATO Science for Peace EAP.SFPP.984068 EU - European Union 633054 |
Depositing User: | Symplectic Publications |
Date Deposited: | 22 May 2017 14:09 |
Last Modified: | 13 Dec 2024 10:47 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
Identification Number: | 10.1109/TTHZ.2017.2705481 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:116719 |