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Proceedings Paper

Light emission from erbium-doped nanocrystalline silicon/silicon dioxide layers under strong optical excitation
Author(s): Pavel K. Kashkarov; Olga A. Shalygina; Denis M. Zhigunov; Dmitri A. Sapun; Sergei A. Teterukov; Victor Yu. Timoshenko; Johannes Heitmann; Michael Schmidt; Margit Zacharias; Kenji Imakita; Minoru Fujii; Shinji Hayashi
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Paper Abstract

Photoluminescence properties of Er-doped nanocrystalline Si/ Si02 structures have been investigated under strong optical excitation. The energy of optical excitation of Si nanocrystals was shown to be almost completely transferred to Er3+ ions in surrounding Si02. It was found that at high pump intensity the energy transfer process competes successfully with nonradiative Auger-recombination in Si nanocrystals. At high excitation level the population inversion of Er3+ ions was achieved and a decrease of the decay time of the photoluminescence at 1.5 μm was observed. Possible mechanisms of the shortening of the Er3+ ion lifetime are discussed.

Paper Details

Date Published: 7 June 2005
PDF: 5 pages
Proc. SPIE 5850, Advanced Laser Technologies 2004, (7 June 2005); doi: 10.1117/12.633527
Show Author Affiliations
Pavel K. Kashkarov, M.V. Lomonosov Moscow State Univ. (Russia)
Olga A. Shalygina, M.V. Lomonosov Moscow State Univ. (Russia)
Denis M. Zhigunov, M.V. Lomonosov Moscow State Univ. (Russia)
Dmitri A. Sapun, M.V. Lomonosov Moscow State Univ. (Russia)
Sergei A. Teterukov, M.V. Lomonosov Moscow State Univ. (Russia)
Victor Yu. Timoshenko, M.V. Lomonosov Moscow State Univ. (Russia)
Johannes Heitmann, Max-Planck-Institute of Microstructure Physics (Germany)
Michael Schmidt, Max-Planck-Institute of Microstructure Physics (Germany)
Margit Zacharias, Max-Planck-Institute of Microstructure Physics (Germany)
Kenji Imakita, Kobe Univ. (Japan)
Minoru Fujii, Kobe Univ. (Japan)
Shinji Hayashi, Kobe Univ. (Japan)

Published in SPIE Proceedings Vol. 5850:
Advanced Laser Technologies 2004
Ivan A. Shcherbakov; Anna Giardini; Vitali I. Konov; Vladimir I. Pustovoy, Editor(s)

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