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Phototropic centers in lasers systems based on rare earth garnet crystals

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Abstract

The emission from Cr3+ ions at 730 nm is enhanced under the action of the second harmonic radiation of a neodymium laser, while the intensity of emission at 1.54 μm from Cr4+ ions in tetrahedral positions remains unchanged. This result casts doubt on the interpretation of absorption bands at 0.775–1.26 μm and the luminescence bands at 1.103–1.67 μm in the spectra of rare earth garnets, which have been previously assigned to electron transitions in Cr4+ ions occupying tetrahedral positions in the garnet structure.

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Authors and Affiliations

  1. Institute of Applied Physics, Irkutsk State University, Irkutsk, Russia

    L. I. Shchepina, O. V. Borodina & L. I. Ruzhnikov

Authors
  1. L. I. Shchepina
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  2. O. V. Borodina
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  3. L. I. Ruzhnikov
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 31, No. 6, 2005, pp. 23–28.

Original Russian Text Copyright © 2005 by Shchepina, Borodina, Ruzhnikov.

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Shchepina, L.I., Borodina, O.V. & Ruzhnikov, L.I. Phototropic centers in lasers systems based on rare earth garnet crystals. Tech. Phys. Lett. 31, 228–230 (2005). https://doi.org/10.1134/1.1894440

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  • DOI: https://doi.org/10.1134/1.1894440

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