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Proceedings Paper

Engineering intersubband population inversion with dilute nitrides
Author(s): M. F. Pereira; Stanko Tomic
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Paper Abstract

In this paper we investigate the possibility of producing local population inversion that can lead to lasing without inversion by engineering the conduction band effective masses in dilute nitride structures so that the upper lasing subband has an effective mass considerably smaller than the lower lasing subband that could not be obtained in usual IIIV materials. This analysis is the first step towards possible far infrared dilute nitride based quantum cascade lasers that could benefit from the gain without inversion effect to operate at higher temperatures.

Paper Details

Date Published: 24 January 2011
PDF: 4 pages
Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 79450T (24 January 2011); doi: 10.1117/12.873563
Show Author Affiliations
M. F. Pereira, Sheffield Hallam Univ. (United Kingdom)
Stanko Tomic, STFC Daresbury Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 7945:
Quantum Sensing and Nanophotonic Devices VIII
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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