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Effects of densification atmosphere on ...
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Document type :
Article dans une revue scientifique
DOI :
10.1088/2053-1591/1/2/026203
Title :
Effects of densification atmosphere on optical properties of ionic copper-activated sol-gel silica glass: towards an efficient radiation dosimeter
Author(s) :
El Hamzaoui, Hicham [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bouwmans, Géraud [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
CAPOEN, Bruno [Auteur] refId
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Ouerdane, Youcef [Auteur]
Laboratoire Hubert Curien [Saint Etienne] [LHC]
Chadeyron, Geneviève [Auteur]
Mahiou, Rachid [Auteur]
Girard, Sylvain [Auteur]
Laboratoire Hubert Curien [Saint Etienne] [LHC]
Boukenter, Aziz [Auteur]
Laboratoire Hubert Curien [Saint Etienne] [LHC]
Bouazaoui, Mohamed [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Journal title :
Materials Research Express
Pages :
026203
Publisher :
IOP Publishing Ltd
Publication date :
2014-06-25
HAL domain(s) :
Physique [physics]/Physique [physics]/Optique [physics.optics]
English abstract : [en]
Ionic copper-doped pure silica glass, with high photoluminescence (PL) quantum yield (QY), has been prepared using the sol-gel technique and densification of the porous xerogel under inert atmosphere. The optical properties ...
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Ionic copper-doped pure silica glass, with high photoluminescence (PL) quantum yield (QY), has been prepared using the sol-gel technique and densification of the porous xerogel under inert atmosphere. The optical properties of the obtained glass, and especially the green light emission due to Cu+ ions under UV excitation, have been studied and compared to those of the glass produced in air atmosphere conditions. We have shown that the sintering process under helium increases the quantum efficiency of this emission by a factor 40. Moreover, the resulting copper-doped silica rod has been used in the fabrication of a high numerical aperture microstructured optical fiber, which shows similar luminescent properties to the sol-gel preform. The obtained fiber exhibits promising characteristics to be employed in an all-fibred UV sensor. In particular, the high emission efficiency and the specific air-clad geometry of the fiber made it possible to perform measurements without removing the polymer coating.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Collections :
  • Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523
Source :
Harvested from HAL
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