English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/23985
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Photoluminescence and up-conversion of Er3+ in tetragonal NaBi(XO4)2, X=Mo or W, scheelites

AutorRico, Mauricio ; Volkov, Vladimir; Zaldo, Carlos
Palabras claveLuminescence
Optical properties
Disordered systems
Fecha de publicación12-jul-2001
EditorElsevier
CitaciónJournal of Alloys and Compounds 323-324, 806-810 (2001)
ResumenEr doped NaBi(XO4)2, X=Mo or W, single crystals with tetragonal structure have been grown with optical quality by the Czochralski method. Er concentrations up to 1.4×1020 cm−3 and 1.3×1020 cm−3 have been attained in Mo and W compounds respectively. 4S3/2→4I15/2 emission of Er3+ has been achieved at room temperature by up-conversion exciting the 4I11/2 or 4I9/2 multiplets. This green emission is strongly polarised parallel to the crystallographic c-axis. The efficiency of the up-conversion process in tetragonal NaBi(MoO4)2 and NaBi(WO4)2 crystals are similar and also similar to that found in monoclinic KGd(WO4)2 crystal. The slope of the logarithmic dependence between up-converted and pump intensities suggests a two-photon excitation process. A schematic model of the up-conversion process is outlined.
Versión del editorhttp://dx.doi.org/10.1016/S0925-8388(01)01149-5
URIhttp://hdl.handle.net/10261/23985
DOI10.1016/S0925-8388(01)01149-5
ISSN0925-8388
Aparece en las colecciones: (ICMM) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.