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http://hdl.handle.net/2445/33785
Title: | 1.84 micron emission of Tm3+ sensitized by Yb3+ ions in monoclinic KGd(WO4)2 single crystals |
Author: | Güell Vilà, Frank Massons, Jaume Gavaldà, Josefina Pujol Baigés, Maria Cinta Aguiló Díaz, Magdalena Díaz, Francesc (Díaz González) |
Keywords: | Metalls de terres rares Cristal·lografia Làsers d'estat sòlid Electrònica quàntica Rare earth metals Crystallography Solid-state lasers Quantum electronics |
Issue Date: | 2007 |
Publisher: | American Institute of Physics |
Abstract: | By exciting at 940 nm, we have characterized the 1.84 m near infrared emission of trivalent thulium ions in Yb3+, Tm3+:KGd WO4 2 single crystals as a function of the dopant concentration and temperature, from 10 K to room temperature. An overall 3H6 Stark splitting of 470 cm−1 for the Tm3+ ions in the Yb3+, Tm3+:KGd WO4 2 was obtained. We also studied the blue emission at 476 nm Tm3+ and the near infrared emissions at 1.48 m Tm3+ and 1 m Yb3+ as a function of the dopant concentration. Experimental decay times of the 1G4, 3H4, and 3F4 Tm3+ and 2F5/2 Yb3+ excited states have been measured as a function of Yb3+ and Tm3+ ion concentrations. For the 3F4 →3H6 transition of Tm3+ ions, we used the reciprocity method to calculate the maximum emission cross section of 3.07 10−20 cm2 at 1.84 m for the polarization parallel to the Nm principal optical direction. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1063/1.2433131 |
It is part of: | Journal of Applied Physics, 2007, vol. 101, p. 033108-1-033108-6 |
URI: | http://hdl.handle.net/2445/33785 |
Related resource: | http://dx.doi.org/10.1063/1.2433131 |
ISSN: | 0021-8979 |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) |
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