Facing the challenges of THz quantum cascade laser device development: the relevance of nonequilibrium many body theories

PEREIRA, Mauro (2005). Facing the challenges of THz quantum cascade laser device development: the relevance of nonequilibrium many body theories. In: CAS 2005 Proceedings. 2005 International Semiconductor Conference, 2005. IEEE, 27-33.

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Abstract

In this review we summarize current challenges for THz quantum cascade laser development as well as recent theoretical results, which indicate the relevance of nonequilibrium many body effects in the complex scattering and correlation microscopic mechanisms underlying the operation of those devices. The strongly nonthermal nature of the electronic wavefunctions, the fact that the energy difference between the subbands relevant for laser action are of the order of many body effects, and of the resulting level broadening, the Coulomb enhanced cross absorption, as well as the need to account for dephasing in the transport, require our advanced nonequilibrium many body approach for predictive simulations.

Item Type:	Book Section
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Electronic Materials and Sensors Research Group
Identification Number:	https://doi.org/10.1109/SMICND.2005.1558703
Page Range:	27-33
Depositing User:	Helen Garner
Date Deposited:	10 Dec 2014 14:18
Last Modified:	18 Mar 2021 19:00
URI:	https://shura.shu.ac.uk/id/eprint/8993

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