Photosensitivity in antimony based glasses
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , , , |
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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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 |
|
_version_ |
1808129551323103232 |