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Title: 1.48 and 1.84 µm thulium emissions in monoclinic KGd(WO4)2 single crystals
Author: Güell Vilà, Frank
Gavaldà, Josefina
Solé i Cartañá, Rosa Ma.
Aguiló Díaz, Magdalena
Díaz, Francesc (Díaz González)
Galan, M.
Massons, Jaume
Keywords: Electrònica quàntica
Metalls de terres rares
Quantum electronics
Rare earth metals
Issue Date: 2004
Publisher: American Institute of Physics
Abstract: By exciting at 788 nm, we have characterized the near infrared emissions of trivalent thulium ions in monoclinic KGd(WO4)2 single crystals at 1.48 and 1.84 mm as a function of dopant concentration from 0.1% to 10% and temperature from 10 K to room temperature. We used the reciprocity method to calculate the maximum emission cross-section of 3.0310220 cm2 at 1.838 mm for the polarization parallel to the Nm principal optical direction. These results agrees well with the experimental data. Experimental decay times of the 3H4!3F4 and 3F4!3H6 transitions have been measured as a function of thulium concentration.
Note: Reproducció del document publicat a:
It is part of: Journal of Applied Physics, 2004, vol. 95, num. 3, p. 919-923
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ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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