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The luminescence properties of rare-earth ions in natural fluorite |
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| Authors: | M Czaja S Body?-Gajowska R Lisiecki A Meijerink Z Mazurak |
| Institution: | 1. Faculty of Earth Sciences, University of Silesia, ul. B?dzińska 60, 41-200, Sosnowiec, Poland 2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422, Wroc?aw, Poland 3. Debye Institute, Ornstein Laboratory, University of Utrecht, Princetonplein 1, Utrecht, The Netherlands 4. Center of Polymer and Carbon Materials, Polish Academy of Sciences, M. Sk?odowskiej-Curie 34, 41-819, Zabrze, Poland |
| Abstract: | For the first time, the luminescence properties of Pr3+, Nd3+ and Tm3+ and Yb3+ ions in fluorite crystal have been obtained by steady-state measurements. In addition, the luminescence spectra of Ce3+, Sm2+, Sm3+, Dy3+, Er3+ and Yb3+ were measured. It was pointed out that λexc.?=?415?nm is most suitable for measuring the Ho3+ emission beside the Er3+. The emission of trivalent holmium and erbium ions was measured independently using time-resolved measurements and tentative assignment of luminescence lines to C 3v and C 4v symmetry sites was proposed. Besides for natural fluorite crystal, the transitions between Stark energy levels of lanthanide ions were presented. |
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