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Quantum dot photonic-crystal-slab nanocavities: Quality factors and lasing

Hendrickson, J. and Richards, B. C. and Sweet, J. and Mosor, S. and Christenson, C. and Lam, D. and Khitrova, G. and Gibbs, H. M. and Yoshie, T. and Scherer, A. and Shchekin, O. B. and Deppe, D. G. (2005) Quantum dot photonic-crystal-slab nanocavities: Quality factors and lasing. Physical Review B, 72 (19). Art. no. 193303. ISSN 1098-0121. doi:10.1103/PhysRevB.72.193303.

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Emission linewidths of quantum dot photonic-crystal-slab nanocavities are measured as a function of temperature and fabrication parameters with low-power and high-power, cw and pulsed, nonresonant excitation. The cavity linewidth is dominated by the absorption of the ensemble of quantum dots having a density of ~=400/µm2; above the absorption edge, the cavity linewidth broadens considerably compared with the empty cavity linewidth. Gain and lasing are seen for high-power pumping; it is estimated that only a small number of quantum dots contributes to the lasing.

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Additional Information:©2005 The American Physical Society (Received 22 August 2005; published 9 November 2005) The Tucson group thanks DARPA, NSF AMOP and EPDT, and AFOSR; the Caltech group thanks the MURI Center for Photonic Quantum Information Systems (ARO/ARDA), NSF-ECS-NIRT, and AFOSR; and the Texas group thanks NSF-ECS-NIRT for financial support.
Subject Keywords:quantum dot lasers; photonic crystals; Q-factor; microcavity lasers
Issue or Number:19
Record Number:CaltechAUTHORS:HENprb05
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1520
Deposited By: Archive Administrator
Deposited On:26 Jan 2006
Last Modified:08 Nov 2021 19:11

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