Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5397902 | Journal of Luminescence | 2017 | 5 Pages |
Abstract
A NaGd(MoO4)2 crystal doped with 2Â at.% Sm3+ was grown by the Czochralski method. Polarized absorption and fluorescence spectra of the crystal were measured at room temperature. Spectroscopic parameters, including absorption and emission cross sections, Judd-Ofelt intensity parameters, radiative transition rates, fluorescence branching ratios, and fluorescence lifetime of the 4G5/2 multiplet, were obtained and compared with other Sm3+-doped crystals. The main fluorescence band around 646Â nm is related to the 4G5/2â6H9/2 transition, which has a branching ratio of 45.4% and peak emission cross sections of 1.73Ã10-21 and 3.13Ã10-21Â cm2 for Ï and Ï polarizations, respectively. The results indicate that the Sm3+:NaGd(MoO4)2 crystal may be a potential gain medium of red visible laser pumped directly by commercially available 405Â nm laser diode.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Jianhui Huang, Jianhua Huang, Yanfu Lin, Xinghong Gong, Yujin Chen, Zundu Luo, Yidong Huang,