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Stimulation of Nonradiative Decay Under Intensive Light Excitation

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Luminescence of Crystals, Molecules, and Solutions

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Abstract

The light emission by impurity ions in crystals under Stokes excitation is preceded by a nonradiative transition which populates the radiative level. Information about the probability of non-radiative transition may be obtained by studying the emission rate after ultra-short exciting pulses of high intensity. The emission rate of CaF2 crystals activated by Sm2+ ions was investigated. Subnanosecond pulses of the second harmonic of a Nd-glass mode-locked laser were used for the excitation. The probabilities of nonradiative decay were determined. It was found that in CaF2:Sm2+ the non-radiative decay probability depends on the exciting light intensity. Results are interpreted in terms of the induced nonradiative transitions by “hot” phonons.

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Author information

Authors and Affiliations

  1. The State Optical Institute, Leningrad, USSR

    A. M. Tkachuk & A. A. Fedorov

Authors
  1. A. M. Tkachuk
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  2. A. A. Fedorov
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Editor information

Editors and Affiliations

  1. Physics Department, University of Delaware, Newark, Delaware, USA

    B. Baron , M. Martens  & S. P. Varma ,  & 

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© 1973 Plenum Press, New York

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Tkachuk, A.M., Fedorov, A.A. (1973). Stimulation of Nonradiative Decay Under Intensive Light Excitation. In: Williams, F., Baron, B., Martens, M., Varma, S.P. (eds) Luminescence of Crystals, Molecules, and Solutions. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-2043-2_55

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  • DOI: https://doi.org/10.1007/978-1-4684-2043-2_55

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-2045-6

  • Online ISBN: 978-1-4684-2043-2

  • eBook Packages: Springer Book Archive

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