Demic, A, Grier, A, Ikonic, Z 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
Authors/Creators: |
|
||||||
---|---|---|---|---|---|---|---|
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: |
|
||||||
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: |
|
||||||
Depositing User: | Symplectic Publications | ||||||
Date Deposited: | 22 May 2017 14:09 | ||||||
Last Modified: | 08 Nov 2017 15:32 | ||||||
Status: | Published | ||||||
Publisher: | Institute of Electrical and Electronics Engineers (IEEE) | ||||||
Identification Number: | https://doi.org/10.1109/TTHZ.2017.2705481 | ||||||
Related URLs: |