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Growth of metallic Ag nanoparticles in fluoroborate glasses doped with rare-earth ions and their optical characterization
Author(s): L. P.N. Riano; Cid B. de Araujo; O. L. Malta; P. Santa Cruz; Marcos A. Couto dos Santos
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Paper Abstract

Fluoroborate glasses have been prepared containing silver nanoparticles (NP) and rare-earth (RE) ions. Optical techniques were used for analysis of the surface plasmon (SP) band formation and to determine the influence of the NP on the RE ions luminescence. Electron microscopy was applied to measure the particles concentration and their size distributions. The techniques used allowed to identify the presence of Ag particles with diameters in the range of 5 - 200 nm. The absorption band of SP is centered at 425 nm for samples doped with Eu3+ and centered at 416 nm for samples with Pr3+. The ions luminescence shows enhancement or quenching for metallic particles of different sizes.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.590834
Show Author Affiliations
L. P.N. Riano, Univ. Federal de Pernambuco (Brazil)
Cid B. de Araujo, Univ. Federal de Pernambuco (Brazil)
O. L. Malta, Univ. Federal de Pernambuco (Brazil)
P. Santa Cruz, Univ. Federal de Pernambuco (Brazil)
Marcos A. Couto dos Santos, Univ. Federal de Sergipe (Brazil)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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