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Proceedings Paper

Effect of excited states on light-current characteristic of a quantum dot laser
Author(s): Li Jiang; Levon V. Asryan
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Paper Abstract

Excited-state-mediated capture of carriers from the waveguide into the lasing ground-state in quantum dots (QDs) is studied. Such a two-step capture places a fundamental limitation on ground-state lasing - the output power saturates at high injection currents. The saturation power is controlled by the transition time between the excited- and ground-state in a QD. The longest, cut-off transition time exists, beyond which no ground-state lasing is possible.

Paper Details

Date Published: 6 February 2007
PDF: 7 pages
Proc. SPIE 6481, Quantum Dots, Particles, and Nanoclusters IV, 648108 (6 February 2007); doi: 10.1117/12.699755
Show Author Affiliations
Li Jiang, Virginia Polytechnic Institute and State Univ. (United States)
Levon V. Asryan, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 6481:
Quantum Dots, Particles, and Nanoclusters IV
Kurt G. Eyink; Diana L. Huffaker; Frank Szmulowicz, Editor(s)

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