Spontaneous Emission Rate of Si Nanocrystals on Thin Au Film
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概要
- 論文の詳細を見る
The effect of Au films with different thicknesses (20 and 100 nm) on the luminescence decay rate of Si nanocrystals was studied in a wide wavelength range. For the sample with the Au thickness of 100 nm, the luminescence decay rate oscillated depending on the distance between the Si nanocrystals and the Au film owing to the modification of the photonic mode density at the position of the Si nanocrystals. On the other hand, when the thickness of the Au film was 20 nm, the oscillation was not observed and a strong enhancement of the decay rate appeared in a small distance range. The degree of enhancement depended on the emission wavelength. These effects are considered to arise from a strong coupling between the electronic excitation of Si nanocrystals and the surface plasmon polariton modes supported by the rough Au surface.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-10-15
著者
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Nakamura Toshihiro
Department Of Anesthesiology Yamanashi Medical University
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Hayashi Shinji
Department Of Anatomy And Embryology Tokyo Metropolitan Institute For Neuroscience
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Fujii Minoru
Department of Chemical Engineering System, School of Engineering, The University of Tokyo
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Fujii Minoru
Department of Electrical and Electronics Engineering, Faculty of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
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Miura Satoru
Department of Electrical and Electronics Engineering, Faculty of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
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Inui Masaki
Department of Electrical and Electronics Engineering, Faculty of Engineering, Kobe University, Rokkodai, Nada, Kobe 657-8501, Japan
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