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Green luminescence of Er3+ in stoichiometric KYb(WO4)2 single crystals
Mateos Ferré, Xavier; Güell Vilà, Frank; Pujol Baigés, Maria Cinta; Bursukova, M.; Solé i Cartañá, Rosa Ma.; Gavaldà, Jna.; Aguiló Díaz, Magdalena; Díaz, Francesc (Díaz González); Massons, Jaume
Universitat de Barcelona
We grew good-optical-quality KYb~WO4)2 single crystals doped with erbium ions by the top seeded solution growth slow cooling method. Optical absorption of erbium was performed at room temperature ~RT! and at 6 K. Green photoluminescence of erbium was achieved at RT and 6 K after selective excitation of ytterbium ions at 940 nm (10 638 cm21). The splitting of all found excited energy levels and the ground energy level of erbium in KYb~WO4)2 is presented derived from the accurate absorption and emission measurements, respectively. The lifetime of the Stokes and the anti-Stokes green emissions of erbium were measured after excitation at 488 nm (20 490 cm21) and 940 nm(10 638 cm21), respectively. We propose applying the up-conversion model to the observed green emission.
Metalls de terres rares
Cristal·lografia
Optoelectrònica
Làsers d'estat sòlid
Rare earth metals
Crystallography
Optoelectronics
Solid-state lasers
(c) American Institute of Physics , 2002
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info:eu-repo/semantics/publishedVersion
American Institute of Physics
         

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Mateos Ferré, Xavier; Pujol Baigés, Maria Cinta; Güell Vilà, Frank; Solé i Cartañá, Rosa Ma.; Gavaldà, Josefina; Aguiló Díaz, Magdalena; Díaz, Francesc (Díaz González); Massons, Jaume
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