Superfluorescent Pulsed Emission from Biexcitons in an Ensemble of CuCl Quantum Dots
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<jats:title>Abstract</jats:title><jats:p>Time-resolved photoluminescence spectra of an ensemble of CuCl quantum dots have been measured by an optical Kerr gate method. The excitation photon energy was tuned to resonant energy for two-photon excitation of biexcitons. We observed that the time profiles of biexciton bands were changed from an exponential fast decay to a pulsed shape. This result indicates a transition from amplified spontaneous emission to superfluorescence. These results will introduce a new field of coherent phenomena originating an ensemble of quantum dots.</jats:p>
収録刊行物
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- MRS Proceedings
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MRS Proceedings 1208 2009-01-01
Springer Science and Business Media LLC