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Proceedings Paper

Single quantum dot emission after resonant excitation
Author(s): Takashi Kuroda; Keiji Kuroda; Kazuaki Sakoda; Katsuyuki Watanabe; Nobuyuki Koguchi; Giyuu Kido
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Paper Abstract

Photoluminescence from a single semiconductor quantum dot after perfect resonant excitation has been temporally resolved with picosecond time resolution. Making use of non-confocal geometry for the micro photoluminescence setup, we can greatly remove the elastic scattering component, and successfully capture the resonantly-excited spontaneous emission from a single quantum dot. The emission intensity as a function of coherent photoinjection shows peculiar oscillatory dependence, i.e., Rabi oscillations of ground-state excitons. The transition strength of the groundstate exciton is precisely determined through the analysis. The value indicates a good agreement with that expected by the radiative decay rate of the quantum dots.

Paper Details

Date Published: 28 February 2006
PDF: 5 pages
Proc. SPIE 6115, Physics and Simulation of Optoelectronic Devices XIV, 61151L (28 February 2006); doi: 10.1117/12.644477
Show Author Affiliations
Takashi Kuroda, National Institute for Materials Science (Japan)
PRESTO, Japan Science and Technology Agency (Japan)
Keiji Kuroda, National Institute for Materials Science (Japan)
Kazuaki Sakoda, National Institute for Materials Science (Japan)
Univ. of Tsukuba (Japan)
Katsuyuki Watanabe, National Institute for Materials Science (Japan)
Nobuyuki Koguchi, National Institute for Materials Science (Japan)
Giyuu Kido, National Institute for Materials Science (Japan)


Published in SPIE Proceedings Vol. 6115:
Physics and Simulation of Optoelectronic Devices XIV
Marek Osiński; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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