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Proceedings Paper

InAs quantum-dot intersubband optical amplifier
Author(s): Xuejun Lu
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Paper Abstract

A coupled quantum dot intersubband optical amplifier structure is reported. InGaAsP/GaAs supperlattice is used to effectively generate population inversion between the excited states and the ground state of the QD. Due to the three-dimensional quantum confinement, normal incidence optical amplification with low threshold current density can be expected. Such an intersubband optical amplifier is promising for highly-sensitive middle infrared (MWIR) and longwave infrared sensing and imaging.

Paper Details

Date Published: 3 September 2008
PDF: 7 pages
Proc. SPIE 7055, Infrared Systems and Photoelectronic Technology III, 705503 (3 September 2008); doi: 10.1117/12.796706
Show Author Affiliations
Xuejun Lu, Univ. of Massachusetts, Lowell (United States)

Published in SPIE Proceedings Vol. 7055:
Infrared Systems and Photoelectronic Technology III
Eustace L. Dereniak; John P. Hartke; Paul D. LeVan; Randolph E. Longshore; Ashok K. Sood, Editor(s)

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