Photosensitivity in antimony based glasses

Detalhes bibliográficos
Autor(a) principal: Nalin, Marcelo [UNESP]
Data de Publicação: 2001
Outros Autores: Messaddeq, Younes [UNESP], Ribeiro, SJL, Poulain, M., Briois, V
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.dtic.mil/dtic/tr/fulltext/u2/p011559.pdf
http://hdl.handle.net/11449/32534
Resumo: New glass forming systems based on Sb2O3-SbPO4 has been explored. These glasses present higher thermal stability against devitrification and higher refractive index than chalcogenide glasses. Under irradiation, using Ar-laser 350nm wavelength and 50 mW power density, change on the coloration is observed. Structural and electronic modifications around Sb cations induced by such treatment have been characterized by XANES measurements at the L-Sb edges. on the one hand, XANES spectra, at the LJ edge, show a decrease of the coordination number for Sb atoms induced by exposure to light indicating a breaking of Sb-O bonds in the glassy network. on the other hand, XANES spectra, at the Lt edge, suggest a change in the oxidation state of Sb atoms. These modifications associated to the photodarkening of the glass is reversible either after a couple of days or after heating the glass at the glass transition temperature, T-g.
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spelling Photosensitivity in antimony based glassesantimony based glassphotosensitivityXANES methodNew glass forming systems based on Sb2O3-SbPO4 has been explored. These glasses present higher thermal stability against devitrification and higher refractive index than chalcogenide glasses. Under irradiation, using Ar-laser 350nm wavelength and 50 mW power density, change on the coloration is observed. Structural and electronic modifications around Sb cations induced by such treatment have been characterized by XANES measurements at the L-Sb edges. on the one hand, XANES spectra, at the LJ edge, show a decrease of the coordination number for Sb atoms induced by exposure to light indicating a breaking of Sb-O bonds in the glassy network. on the other hand, XANES spectra, at the Lt edge, suggest a change in the oxidation state of Sb atoms. These modifications associated to the photodarkening of the glass is reversible either after a couple of days or after heating the glass at the glass transition temperature, T-g.UNESP, Lab Mat Foton, Inst Quim, Araraquara, SP, BrazilUniv Rennes 1, Lab Mat Photon, Rennes, FranceUniv Paris Sud, LURE, F-91898 Orsay, FranceUNESP, Lab Mat Foton, Inst Quim, Araraquara, SP, BrazilNatl Inst OptoelectronicsUniversidade Estadual Paulista (Unesp)Univ Rennes 1Univ Paris SudNalin, Marcelo [UNESP]Messaddeq, Younes [UNESP]Ribeiro, SJLPoulain, M.Briois, V2014-05-20T15:21:23Z2014-05-20T15:21:23Z2001-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article553-558http://www.dtic.mil/dtic/tr/fulltext/u2/p011559.pdfJournal of Optoelectronics and Advanced Materials. Bucharest-magurele: Natl Inst Optoelectronics, v. 3, n. 2, p. 553-558, 2001.1454-4164http://hdl.handle.net/11449/32534WOS:000169586800060299850384191781564460474630346543349586880746735Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Optoelectronics and Advanced Materials0.3900,204info:eu-repo/semantics/openAccess2021-10-23T11:43:45Zoai:repositorio.unesp.br:11449/32534Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:46:39.331406Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Photosensitivity in antimony based glasses
title Photosensitivity in antimony based glasses
spellingShingle Photosensitivity in antimony based glasses
Nalin, Marcelo [UNESP]
antimony based glass
photosensitivity
XANES method
title_short Photosensitivity in antimony based glasses
title_full Photosensitivity in antimony based glasses
title_fullStr Photosensitivity in antimony based glasses
title_full_unstemmed Photosensitivity in antimony based glasses
title_sort Photosensitivity in antimony based glasses
author Nalin, Marcelo [UNESP]
author_facet Nalin, Marcelo [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, SJL
Poulain, M.
Briois, V
author_role author
author2 Messaddeq, Younes [UNESP]
Ribeiro, SJL
Poulain, M.
Briois, V
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Univ Rennes 1
Univ Paris Sud
dc.contributor.author.fl_str_mv Nalin, Marcelo [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, SJL
Poulain, M.
Briois, V
dc.subject.por.fl_str_mv antimony based glass
photosensitivity
XANES method
topic antimony based glass
photosensitivity
XANES method
description New glass forming systems based on Sb2O3-SbPO4 has been explored. These glasses present higher thermal stability against devitrification and higher refractive index than chalcogenide glasses. Under irradiation, using Ar-laser 350nm wavelength and 50 mW power density, change on the coloration is observed. Structural and electronic modifications around Sb cations induced by such treatment have been characterized by XANES measurements at the L-Sb edges. on the one hand, XANES spectra, at the LJ edge, show a decrease of the coordination number for Sb atoms induced by exposure to light indicating a breaking of Sb-O bonds in the glassy network. on the other hand, XANES spectra, at the Lt edge, suggest a change in the oxidation state of Sb atoms. These modifications associated to the photodarkening of the glass is reversible either after a couple of days or after heating the glass at the glass transition temperature, T-g.
publishDate 2001
dc.date.none.fl_str_mv 2001-06-01
2014-05-20T15:21:23Z
2014-05-20T15:21:23Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.dtic.mil/dtic/tr/fulltext/u2/p011559.pdf
Journal of Optoelectronics and Advanced Materials. Bucharest-magurele: Natl Inst Optoelectronics, v. 3, n. 2, p. 553-558, 2001.
1454-4164
http://hdl.handle.net/11449/32534
WOS:000169586800060
2998503841917815
6446047463034654
3349586880746735
url http://www.dtic.mil/dtic/tr/fulltext/u2/p011559.pdf
http://hdl.handle.net/11449/32534
identifier_str_mv Journal of Optoelectronics and Advanced Materials. Bucharest-magurele: Natl Inst Optoelectronics, v. 3, n. 2, p. 553-558, 2001.
1454-4164
WOS:000169586800060
2998503841917815
6446047463034654
3349586880746735
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Optoelectronics and Advanced Materials
0.390
0,204
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 553-558
dc.publisher.none.fl_str_mv Natl Inst Optoelectronics
publisher.none.fl_str_mv Natl Inst Optoelectronics
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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