外文题目: Optical characterization of Tm3+ in LaF3 single crystal
作者: Hong, Jiaqi; Zhang, Lianhan; Xu, Min; Hang, Yin
刊名: Infrared Phys. Technol.
年: 2017 卷: 82 页： 50--55
英文关键词:
Optical property; Laser crystal; Thulium
LASER OPERATION; UP-CONVERSION; FIBER LASERS; YAG LASER; MU-M; SPECTROSCOPY; WAVELENGTH; GROWTH
英文摘要:
Optical properties of a Tm-doped LaF3 single crystal have been detailed investigated as a promising material for similar to 1.84 mu m lasers for the first time. Judd-Ofelt theory was applied to analyze the absorption spectrum. With the J-O intensity parameters Omega t((t=2,4,6)), the emission probabilities, branching ratios and radiative lifetimes for the as-grown crystal were all calculated. The stimulated emission cross-section of the F-3(4) -> H-3(6) transition was obtained by using the Fuchtbauer-Ladenburg method. The gain cross-ection for similar to 1.84 mu m emission becomes positive once the population inversion level reaches 30%. The fluorescence lifetime of the F-3(4) manifold was measured to be 15.56 ms. Potential utility of the Tm:LaF3 crystal as laser active material at similar to 1.84 mu m can be expected. (C) 2017 Elsevier B.V. All rights reserved.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1016/j.infrared.2017.02.012


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