The study of spectroscopic and luminescence properties of disordered laser crystals calcium niobium gallium garnet doped with Er3+

被引：1
|
作者：
Ryabochkina, P. A. [1 ]
Voronko, Yu. K. [2 ]
Malov, A. V. [1 ]
Marychev, M. O. [3 ]
Sobol, A. A. [2 ]
Ushakov, S. N. [2 ]
Chuprunov, E. V. [3 ]
机构：
[1] Mordovian NP Ogarev State Univ, 68 Bolshevistskaya St, Saransk 430000, Russia
[2] RAS, Laser Mat & Technol Res Ctr, Gen Phys Inst, Moscow 111942, Russia
[3] NI Lobachevsky State Univ Nizhni Novgorod, Nizhnii Novgorod 603950, Russia
来源：
SOLID STATE LASERS AND AMPLIFIERS III | 2008年 / 6998卷
基金：
俄罗斯基础研究基金会;
关键词：
absorption spectra; intensity parameters; gain cross-section; INTENSITIES; TM3+;
D O I：
10.1117/12.774470
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The results of spectroscopy of disordered Er-doped calcium-niobium gallium garnets (CNGG: Er) are displayed. Based on the Judd-Ofelt theory, three intensity parameters Omega(t) (t=2, 4, 6) for Er ions concentration from 6 at. % in these crystals were obtained. The oscillator strength for hypersensitivity transition I-4(15/2)-> H-2(11/2) and intensity parameter Omega(2) of Er3+ ions in CNGG: Er crystals are higher than corresponding values for other Er-doped garnets. These results we explain by the presence in these crystals of optical centers Er with the environment symmetry lower than D-2. Gain cross-section for laser transition I-4(13/2) -> I-4(15/2) of Er3+ ions was obtained using absorption and emission cross-data for transition I-4(15/2) -> I-4(13/2) and I-4(13/2) -> I-4(15/2) respectively.
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页数：7
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