Journal
APPLIED PHYSICS LETTERS
Volume 88, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2189747
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- Engineering and Physical Sciences Research Council [GR/S05779/01] Funding Source: researchfish
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We report on the control of the spontaneous emission rates in InAs self-assembled quantum dots weakly coupled to the mode of a modified H1 defect cavity in a two-dimensional photonic crystal slab. Changes in sample temperature are used to spectrally tune the exciton emission from a single quantum dot to the monopole mode of the microcavity. A Purcell enhancement of the spontaneous emission rate of up to a factor of 11.4 is seen on-resonance, while suppression by up to a factor of 4.4 is seen off-resonance. Also, a two orders of magnitude increase in the intensity of light detected from the exciton is measured when compared to a quantum dot in bulk GaAs. (c) 2006 American Institute of Physics.
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