Published November 15, 2005
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Quantum dot photonic-crystal-slab nanocavities: Quality factors and lasing
Abstract
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.
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.Files
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- 1520
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- CaltechAUTHORS:HENprb05
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2006-01-26Created from EPrint's datestamp field
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2021-11-08Created from EPrint's last_modified field