Soviet Physics Journal

, Volume 30, Issue 10, pp 842–846 | Cite as

Tunable laser radiation, nonlinear absorption, and “anti-stokes” luminescence of color centers in α-Al2O3

  • A. G. Tokarev
  • E. F. Martynovich
  • S. A. Zilov
Optics and Spectroscopy


This work investigates the generation of laser radiation by color centers of leucosapphire, nonlinear absorption, and the excitation mechanism of UV-luminescence. It is shown that UV-luminescence from color centers, excited in the 0.68 μm absorption band, is caused by a two-staged excitation mechanism. The optical characteristics of the color centers are measured and calculation is made of the variation of the absorption coefficient with laser pulse's duration.


Color Radiation Absorption Coefficient Absorption Band Laser Pulse 
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Literature cited

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    E. F. Martynovich, A. G. Tokarev, and V. A. Grigorov, Zh. Tekh. Fiz.,55, No. 2, 324 (1985).Google Scholar
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    E. F. Martynovich, V. A. Grigorov, and A. G. Tokarev, Information Listing VDNKh SSSR, Irkutsk (1983).Google Scholar
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    E. F. Martynovich, V. A. Grigorov, A. G. Tokarev, et al., Luminescence Devices and Ionized Radiation Converters [in Russian], Nauka, Novosibirsk (1985).Google Scholar
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    E. F. Martynovich, V. A. Grigorov, A. G. Tokarev, and S. A. Zilov, in: Laser Optics, Proceedings, Leningrad (1984), p. 139.Google Scholar
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    B. I. Stepanov (ed.), Design Methods for Optical Quantum Generators [in Russian], Nauka Tekh., Minsk (1968), Vol. 2.Google Scholar

Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • A. G. Tokarev
    • 1
  • E. F. Martynovich
    • 1
  • S. A. Zilov
    • 1
  1. 1.A. A. Zhdanov State UniversityIrkutsk

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