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Appl. Sci. 2018, 8(8), 1335; https://doi.org/10.3390/app8081335

SiO2-SnO2:Er3+ Glass-Ceramic Monoliths

1
FBK Photonics Unit, IFN-CNR CSMFO Lab, Povo, 38123 Trento, Italy
2
Department of Civil, Environmental and Mechanical Engineering, University of Trento, Mesiano, 38123 Trento, Italy
3
Department of Applied Sciences, Ho Chi Minh City University of Technology and Education, Linh Chieu, Thu Duc, Ho Chi Minh City 720214, Vietnam
4
Department of Physics, University of Trento, Povo, 38123 Trento, Italy
5
Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi”, Piazza del Viminale 1, 00184 Roma, Italy
6
MiPLab, IFAC-CNR, 50019 Sesto Fiorentino, Italy
7
Institute of Low Temperature and Structure Research, PAS, 50422 Wroclaw, Poland
8
Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
*
Authors to whom correspondence should be addressed.
Received: 4 July 2018 / Revised: 4 August 2018 / Accepted: 6 August 2018 / Published: 10 August 2018
(This article belongs to the Special Issue Rare-Earth Doping for Optical Applications)
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Abstract

The development of efficient luminescent systems, such as microcavities, solid-state lasers, integrated optical amplifiers, and optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare-earth ions because they exhibit specific morphologic, structural, and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in a silica matrix, tin dioxide presents some interesting peculiarities, e.g., the presence of tin dioxide nanocrystals allows an increase in both solubility and emission of rare-earth ions. Here, we focus our attention on Er3+—doped silica—tin dioxide photonic glass-ceramics fabricated by a sol-gel route. Although the SiO2-SnO2:Er3+ could be fabricated in different forms, such as thin films, monoliths, and planar waveguides, we herein limit ourselves to the monoliths. The effective role of tin dioxide as a luminescence sensitizer for Er3+ ions is confirmed by spectroscopic measurements and detailed fabrication protocols are discussed. View Full-Text
Keywords: transparent glass-ceramics; luminescence sensitizer; SiO2-SnO2; erbium; sol-gel; time-resolved spectroscopy transparent glass-ceramics; luminescence sensitizer; SiO2-SnO2; erbium; sol-gel; time-resolved spectroscopy
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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 (CC BY 4.0).
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Tran, L.T.N.; Massella, D.; Zur, L.; Chiasera, A.; Varas, S.; Armellini, C.; Righini, G.C.; Lukowiak, A.; Zonta, D.; Ferrari, M. SiO2-SnO2:Er3+ Glass-Ceramic Monoliths. Appl. Sci. 2018, 8, 1335.

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