Optical absorption spectra and energy levels of Er3+ ions in glassy lithium tetraborate matrix |
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Authors: | P. S. Danilyuk K. P. Popovich P. P. Puga A. I. Gomonai N. V. Primak V. N. Krasilinets I. I. Turok G. D. Puga V. M. Rizak |
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Affiliation: | 2. Uzhgorod National University, Uzhgorod, 88000, Ukraine 1. Institute of Electron Physics, National Academy of Sciences of Ukraine, Uzhgorod, 88017, Ukraine
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Abstract: | The optical absorption spectra of Er:Li2B4O7 glasses are studied in the range 200–800 nm. The lines corresponding to the direct f-f parity-forbidden intraconfigurational transitions from the ground 4 I 15/2 state to the levels of the excited 4 F 9/2, 4 S 3/2, 2 H 9/2, 2 H 11/2, 4 F 7/2, 4 F 5/2, 4 F 3/2, 2 H 9/2, 4 G 11/2, 4 D 3/2, 4 D 1/2, and 2 D 3/2 states are found. |
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