Abstract
This work explores the potential of laser excited luminescence for the study of type and concentration of rare-earth (RE) luminescence centres in CaF2. A comparison with X-ray excited luminescence is made. The luminescence spectra of several natural and synthetic samples are obtained at low and room temperatures using different Ar+ and Kr+ laser lines for excitation. Tentative assignment of the luminescent lines to different RE2+ and RE3+ ions is made. The excitation is shown to take place predominantly through the emission of one phonon. The possibilities for concentration measurements of luminescent centres are discussed.
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Iliev, M., Liarokapis, E. & Sendova, M.B. Laser excited luminescence of rare earth impurities in natural and synthetic CaF2 . Phys Chem Minerals 15, 597–600 (1988). https://doi.org/10.1007/BF00311031
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DOI: https://doi.org/10.1007/BF00311031