Pr3+-sensitized Er3+-doped bismuthate glass for generating high inversion rates at 2.7 µm wavelength.
Yanyan Guo, Ying Tian, Liyan Zhang, Lili Hu, Nan-Kuang Chen, Junjie Zhang
Index: Optics Letters 37(16) , 3387-9, (2012)
Full Text: HTML
Abstract
With a 980 nm laser diode pumping, the 2.7 µm emission and energy transfer processes of Er3+/Pr3+ codoped germanium-gallium-bismuthate glasses have been investigated. For Er3+ (1 mol. %) and Pr3+ (1 mol. %) molar concentrations, an intense 2.7 µm emission was obtained based on the high excited-state absorption of Er3+ ions and energy transfer (ET) between Er3+ and Pr3+ ions codopant (ET). The intrinsic lifetime of Er3+:4I(13/2) level is quenched effectively (from 6.85 ms down to 0.24 ms) and the population inversions between Er3+:4I(11/2) and 4I(13/2) levels are enhanced to achieve a four-level energy system at 2.7 µm.
Related Compounds
Related Articles:
2013-03-21
[Nanoscale 5(6) , 2249-53, (2013)]
2015-01-01
[Nanoscale Res. Lett. 10 , 144, (2015)]
2015-01-01
[Int. J. Biol. Macromol. 72 , 1308-12, (2014)]
2013-09-01
[Biomaterials 34(29) , 7127-34, (2013)]
2012-10-16
[Anal. Chem. 84(20) , 8871-9, (2012)]