Artículos de revistas
Surface-plasmon-enhanced frequency upconversion in Pr(3+) doped tellurium-oxide glasses containing silver nanoparticles
Fecha
2008-05-01Registro en:
Journal of Applied Physics. Melville: Amer Inst Physics, v. 103, n. 9, p. 4, 2008.
0021-8979
10.1063/1.2919566
WOS:000255983200052
WOS000255983200052.pdf
Autor
Universidade Federal de Pernambuco (UFPE)
Universidade Estadual Paulista (Unesp)
Universidade de São Paulo (USP)
Institución
Resumen
A frequency upconversion process in Pr(3+) doped TeO(2)-ZnO glasses containing silver nanoparticles is studied under excitation with a nanosecond laser operating at 590 nm, in resonance with the (3)H(4)-->(1)D(2) transition. The excited Pr(3+) ions exchange energy in the presence of the nanoparticles, originating efficient conversion from orange to blue. The enhancement in the intensity of the luminescence at similar to 482 nm, corresponding to the (3)P(0)-->(3)H(4) transition, is due to the influence of the large local field on the Pr(3+) ions, which are located near the metallic nanoparticles. (C) 2008 American Institute of Physics.