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Optical Properties of Pr3+-Doped Y2SiO5 Crystals |
| SUN Cheng-Lin1;LI Jian-Fu2,3;HU Chang-Hong1;JIANG Zhan-Kui1,2 |
| 1Department of Physics, Jilin University, Changchun 130021
2Department of Physics, Yantai University, Yantai 246005
3Department of Physics, Linyi Normal University, Linyi 276000 |
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| Cite this article: |
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SUN Cheng-Lin, LI Jian-Fu, HU Chang-Hong et al 2006 Chin. Phys. Lett. 23 1915-1918 |
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Abstract Optical properties of Pr3+ doped in Y2SiO5, including absorption spectra, emission spectra, and fluorescence decay, have been investigated with a special attention in the UV region. Broad band (270--350nm) UV fluorescence assigned to the transitions 4f5d → 4f2 3HJ, 3FJ is found. The spontaneous transition probabilities in the 4f2 intraconfiguration are calculated by utilizing the Judd--Ofelt theory, by which three phenomenological parameters (Ω2, Ω4, Ω6,) are obtained by fitting the absorption spectra. For the evaluation of transition probability of the interconfiguration 4f5d → 4f2, a formula for electric dipole transition is employed. In comparison of the measured fluorescence lifetime with the calculated spontaneous radiative lifetime, the fluorescence quantum efficiency is deduced.
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| Keywords:
78.20.-e
78.55.Hx
42.70.Hj
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Published: 01 July 2006
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| PACS: |
78.20.-e
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(Optical properties of bulk materials and thin films)
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78.55.Hx
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(Other solid inorganic materials)
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42.70.Hj
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(Laser materials)
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