Spectral properties of Er3+ in alkali-zinc-tellurite,barium-tellurite-molybdate,and fluoride glasses |
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| Authors: | A. N. Shushunov V. A. Novikov I. A. Grishin |
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| Affiliation: | 1.Physico-Technical Research Institute of Lobachevsky State,University of Nizhni Novgorod,Nizhni Novgorod,Russia;2.Department of Chemistry,Lobachevsky State University of Nizhni Novgorod,Nizhni Novgorod,Russia |
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| Abstract: | Glasses of three compositions—TeO2 · ZnO · N2O (TZN), where N is Li, Na, or K; TeO2 · MoO3 · BaO (TMB); and ZrF4 · BaF2 · LaF3 · AlF3 · NaF (ZBLAN)—activated by Er3+ or Yb3+ and Er3+ ions were synthesized and investigated. For the ZBLAN glass, the brightest luminescence of Er3+ ions in the visible range was observed under excitation by the irradiation of a diode laser with the generation wavelength 0.98 μm. The TZN glass is not inferior in the intensity of luminescence with the wavelength 1.55 μm to the TMB glass, having phonons of higher energy than those for the TZN glass (940 and 740 cm−1, respectively). A glass was prepared with a high content of molybdenum oxide. The possibility to increase the up-conversion efficiency in tellurite glasses is considered. |
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