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Impurity Luminescence of Alexandrite Crystals

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Journal of Applied Spectroscopy Aims and scope

Abstract

The luminescence of alexandrite excited by a high‐current electron beam is investigated. Its spectrum has bands of the impurity ions Cr3+ and of the Cr–Cr pairs and also the band at λ = 492–495 nm. In all of the crystals we have detected chromium ions distributed over two nonequivalent positions, differently in different crystals. It is shown that the color of the crystals and its change on illumination of the crystals with the light of different spectral composition depend mainly on the chromium ions and their distribution over crystalline positions. A noticeable effect of other impurity ions is noted for a number of crystals.

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Authors and Affiliations

  1. Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, 106 Amundsen Str., Ekaterinburg, 620016, Russia

    V. I. Solomonov, S. G. Mikhailov & A. I. Lipchak

  2. V. I. Vernadskii State Geological Museum, Moscow, Russia

    Yu. S. Kozlov

Authors
  1. V. I. Solomonov
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  2. S. G. Mikhailov
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  3. A. I. Lipchak
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  4. Yu. S. Kozlov
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Correspondence to V. I. Solomonov.

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Solomonov, V.I., Mikhailov, S.G., Lipchak, A.I. et al. Impurity Luminescence of Alexandrite Crystals. Journal of Applied Spectroscopy 69, 423–429 (2002). https://doi.org/10.1023/A:1019711502019

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  • DOI: https://doi.org/10.1023/A:1019711502019

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