Single quantum dot emission after resonant excitation

Takashi Kuroda; Keiji Kuroda; Kazuaki Sakoda; Katsuyuki Watanabe; Nobuyuki Koguchi; Giyuu Kido

doi:10.1117/12.644477

28 February 2006 Single quantum dot emission after resonant excitation

Takashi Kuroda, Keiji Kuroda, Kazuaki Sakoda, Katsuyuki Watanabe, Nobuyuki Koguchi, Giyuu Kido

Proceedings Volume 6115, Physics and Simulation of Optoelectronic Devices XIV; 61151L (2006) https://doi.org/10.1117/12.644477
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

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.

Citation Download Citation

Takashi Kuroda, Keiji Kuroda, Kazuaki Sakoda, Katsuyuki Watanabe, Nobuyuki Koguchi, and Giyuu Kido "Single quantum dot emission after resonant excitation", Proc. SPIE 6115, Physics and Simulation of Optoelectronic Devices XIV, 61151L (28 February 2006); https://doi.org/10.1117/12.644477

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