Optical properties of Pr3+, Sm3+and Er3+ions in apatite, fluorite and phosphate glasses

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Abstract

The luminescence spectra of naturally occurring apatite Ca5[F|(PO4)3] and fluorite CaF2crystals, containing traces of rare-earth elements have been compared with phosphate glasses doped with Pr3+, Sm3+and Er3+ions. The selected excitation bands for luminescence of samarium and praseodymium ions were indicated. Separate emission of Sm3+ions besides Pr3+ions in apatite could be measured for λexc=335, 359 and 372 nm and emission of Pr3+ions was strengthened for λexc.=444 nm. The Judd-Ofelt parameters and branching ratios for Pr3+and Sm3+doped phosphate glasses were determined. The spectroscopic quality factor X=Ω4/ Ω6was found to be 0,69 and 1,75 for Pr3+and Sm3+glasses, respectively.

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Bodył, S., Czaja, M., & Mazurak, Z. (2009). Optical properties of Pr3+, Sm3+and Er3+ions in apatite, fluorite and phosphate glasses. In Physics Procedia (Vol. 2, pp. 515–525). Elsevier B.V. https://doi.org/10.1016/j.phpro.2009.07.037

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