V. B. Sigachev, M. E. Doroshenko, T. T. Basiev, G. B. Lutts, B. H. Chai, “Sensitisation of the luminescence of Er3+ and Ho3+ ions by Cr4+ ions in a Y2SiO5 crystal”, Kvantovaya Elektronika, 1995, Volume 22, Number 1,Pages 33

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Sensitisation of the luminescence of Er³⁺ and Ho³⁺ ions by Cr⁴⁺ ions in a Y₂SiO₅ crystal

V. B. Sigachev^a, M. E. Doroshenko^a, T. T. Basiev^a, G. B. Lutts^b, B. H. Chai^b

^a A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow
^b University of Central Florida, Orlando, USA

Abstract: The luminescence of Er³⁺ and Ho³⁺ ions was sensitised by Cr⁴⁺ ions in an yttrium orthosilicate Y₂SiO₅ (YSO) crystal. The luminescence spectra of YSO:C:Er and YSO:Cr:Ho crystals and the kinetics of the luminescence of the Cr donor ions were investigated at 77 K and 300 K and analysed. Radiative energy transfer from Cr⁴⁺ to Ho³⁺ was observed in a Y₂SiO₅:0.2% Cr 0.5% Ho crystal. The Cr⁴⁺—Er³⁺ energy transfer in a Y₂SiO₅4+ to Er³⁺ was estimated to be 14% — 19% at 77 K.

PACS: 78.50.Ec, 42.55.Rz