Email this article Luminescence of disordered crystals with langasite structure doped with chromium ions
- Authors: Alyabyeva L.N.1, Burkov V.I.1, Kotov V.A.2
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Affiliations:
- Moscow Institute of Physics and Technology (State University)
- Kotel’nikov Institute of Radio Engineering and Electronics
- Issue: Vol 62, No 2 (2017)
- Pages: 175-177
- Section: Radio Phenomena in Solids and Plasma
- URL: https://journal-vniispk.ru/1064-2269/article/view/197992
- DOI: https://doi.org/10.1134/S1064226917020012
- ID: 197992
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Abstract
The luminescence, absorption and circular dichroism spectra of langasite family crystals La3Ga5-SiO14 and Sr3Ga2Ge4O14 doped with chromium ions (0.1 at %) are studied in the region of 300–1200 nm. It is demonstrated that these spectra contain bands typical of both a Cr3+ ion in an octahedral environment (position 1a) and a Cr4+ ion in a tetrahedral site (position 2d). The intensities of these bands differ considerably.
About the authors
L. N. Alyabyeva
Moscow Institute of Physics and Technology (State University)
Email: kotov.slava@gmail.com
Russian Federation, Dolgoprudnyi, Moscow oblast, 141700
V. I. Burkov
Moscow Institute of Physics and Technology (State University)
Email: kotov.slava@gmail.com
Russian Federation, Dolgoprudnyi, Moscow oblast, 141700
V. A. Kotov
Kotel’nikov Institute of Radio Engineering and Electronics
Author for correspondence.
Email: kotov.slava@gmail.com
Russian Federation, Moscow, 125009
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