Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7839896 | Journal of Luminescence | 2018 | 5 Pages |
Abstract
A Nd-doped niobate mixed laser crystal of Nd0.01:Gd0.89La0.1NbO4 (Nd:GLNO) has been grown successfully by Czochralski method. The absorption spectrum, fluorescence spectrum and fluorescence decay curve of Nd:GLNO crystal were measured at room temperature. The spectral parameters of Nd:GLNO crystal were obtained based on Judd-Ofelt (J-O) theory calculation. The three intensity parameters Ωt(t=2, 4, 6) were calculated to be 6.61, 1.43 and 3.31â¯Ãâ¯10-20 cm2, respectively. On the base of the Ωt calculation, the branching ratios, spontaneous radiative probabilities, radiative lifetime and fluorescence quantum efficiency of the 4F3/2 level have been evaluated. Compared with other Nd-doped niobate laser crystal, Nd:GLNO shows a special spectral properties due to the large structure disorder caused by La3+. All the results demonstrate that this crystal is a specific low symmetrical laser material different from other niobates family crystals such as Nd:GdNbO4 (Nd:GNO) and Nd:YNbO4 (Nd:YNO) and can be considered as a promising laser material suitable for laser diode pumping.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Shoujun Ding, Qingli Zhang, Dunlu Sun, Fang Peng, Wenpeng Liu, Jianqiao Luo, Guihua Sun,