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Upconversion luminescence of Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders upon excitation by an infrared laser
Laser Physics Letters Vol.14 (№7): P.076003(1-5) · 27 June 2017
A.A. Lyapin, S.V. Kuznetsov, P.A. Ryabochkina, A.P. Merculov, M.V. Chernov, Yu.A. Ermakova, A.A. Luginina and P.P. Fedorov
A.A. Lyapin, S.V. Kuznetsov, P.A. Ryabochkina, A.P. Merculov, M.V. Chernov, Yu.A. Ermakova, A.A. Luginina and P.P. Fedorov
Abstract
Fluorite-type Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders were synthesized using the co-precipitation from water solution technique. The upconversion luminescence of Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders in the visible spectral region upon excitation of 5I7 level Ho3+ ions and 4I13/2 level Er3+ ions were studied for the first time. The possibility of visualizing near IR laser radiation using Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders is proposed. Optimal compositions of Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders for application as visualizers are discussed.
Fluorite-type Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders were synthesized using the co-precipitation from water solution technique. The upconversion luminescence of Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders in the visible spectral region upon excitation of 5I7 level Ho3+ ions and 4I13/2 level Er3+ ions were studied for the first time. The possibility of visualizing near IR laser radiation using Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders is proposed. Optimal compositions of Ca1−xHoxF2+x and Sr0.98−xEr0.02HoxF2.02+x powders for application as visualizers are discussed.