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Journal of Nanomaterials
Volume 2007, Article ID 84745, 6 pages
http://dx.doi.org/10.1155/2007/84745
Review Article

Rare Earth-Activated Silica-Based Nanocomposites

1CSMFO group, CNR-IFN, Istituto di Fotonica e Nanotecnologie, via Sommarive, Povo, Trento 14-38050, Italy
2Laboratoire de Chimie Appliquéede de l'Etat Solide, Ecole Nationale Supérieure de Chimie de Paris (ENSCP), UMR-CNRS 7574, 11 rue Pierre et Marie Curie, Paris 75231, France
3Dipartimento di Fisica, Università degli Studi di Trento, Gruppo CSMFO, Via Sommarive, Povo, Trento 14-38100, Italy
4Laboratoire CRISMAT, UMR 6508, ENSICAEN, 6 Boulevard du Maréchal Juin, Caen Cedex 14050, France
5CNR-IFAC, Istituto di Fisica Applicata, Nello Carrara, via Madonna del Piano, Sesto Fiorentino, Firenze 10-50019, Italy
6CNR, Dipartimento Materiali e Dispositivi, via dei Taurini 19, Roma 00185, Italy

Received 3 August 2007; Accepted 23 November 2007

Academic Editor: Le Quoc Minh

Copyright © 2007 C. Armellini et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Two different kinds of rare earth-activated glass-based nanocomposite photonic materials, which allow to tailor the spectroscopic properties of rare-earth ions: (i) Er3+-activated SiO2-HfO2 waveguide glass ceramic, and (ii) core-shell-like structures of Er3+-activated silica spheres obtained by a seed growth method, are presented.