Upconversion emission in a carbon-implanted Yb:YAG planar waveguide


Por: Vázquez G.V., Desirena H., De La Rosa E., Flores-Romero E., Márquez H., Rickards J., Trejo-Luna R.

Publicada: 1 nov 2012
Resumen:
Light confinement and spectroscopic properties of a Yb:YAG planar waveguide fabricated by ion implantation were investigated. Under 970 nm excitation, cooperative upconversion and near infrared luminescence were observed. The interaction between Yb3+ ion pairs was responsible for the appearance of a blue-green band centered at 514 nm. However, several more bands in the blue, green and red regions were detected and are related to Er3+ and Tm3+ ion impurities. The upconversion emission of such ion impurities is explained in terms of an efficient energy transfer from Yb3+ to Er3+ and Tm3+ due to high Yb3+ concentration. The stimulated emission cross section for the F-2(5/2)-> F-2(7/2) transition of Yb3+ was 1.9 x 10(-20) cm(2). The fluorescence lifetime of the F-2(5/2) level and that of the blue-green band were 1.28 ms and 593 mu s respectively. The self-convolution of IR emission was calculated and the result shows that the main peak is centered at 514 nm. Such self-convolution and the f

Filiaciones:
Vázquez G.V.:
 Centro de Investigaciones en Óptica, A.P. 1-948, León, Gto. 37150, Mexico

Desirena H.:
 Centro de Investigaciones en Óptica, A.P. 1-948, León, Gto. 37150, Mexico

De La Rosa E.:
 Centro de Investigaciones en Óptica, A.P. 1-948, León, Gto. 37150, Mexico

Flores-Romero E.:
 Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

Márquez H.:
 Departamento de Óptica, CICESE, 107 Carr. Tijuana-Ensenada, 22860 Ensenada, B.C., Mexico

Rickards J.:
 Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

Trejo-Luna R.:
 Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico
ISSN: 00304018
Editorial
ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, Países Bajos
Tipo de documento: Article
Volumen: 285 Número: 24
Páginas: 5531-5534
WOS Id: 000311196500141