Many body theory of THz intervalence gain in quantum wells

PEREIRA, M. F. (2008). Many body theory of THz intervalence gain in quantum wells. Optical and Quantum Electronics, 40 (14-15), 1091-1095.

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Abstract

This paper presents calculations of THz gain in III-V quantum wells based on transitions between the valence bands. The system is out of equilibrium and the optical susceptibility leading to absorption and gain is calculated after a Keldysh nonequilibrium Greens' functions approach. The relevance of many body and nonresonant contribution to the spectrum is discussed as a function of local population inversion in k-space for a system where the injected holes are distributed within the two lowest subbands without global population inversion.

Item Type: Article
Additional Information: Times Cited: 0 8th International Conference on Numerical Simulation of Optoelectronic Devices SEP 01-04, 2008 Univ Nottingham, Nottingham, ENGLAND
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
Depositing User: Danny Weston
Date Deposited: 15 Apr 2010 16:18
Last Modified: 15 Apr 2010 16:18
URI: http://shura.shu.ac.uk/id/eprint/1693

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