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Superfluorescent Pulsed Emission from Biexcitons in an Ensemble of CuCl Quantum Dots

  • Kensuke Miyajima (a1), Shingo Saito (a2), Masaaki Ashida (a3) and Tadashi Itoh (a4)

Abstract

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.

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Keywords

Superfluorescent Pulsed Emission from Biexcitons in an Ensemble of CuCl Quantum Dots

  • Kensuke Miyajima (a1), Shingo Saito (a2), Masaaki Ashida (a3) and Tadashi Itoh (a4)

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