Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses

Detalhes bibliográficos
Autor(a) principal: João Coelho
Data de Publicação: 2011
Outros Autores: Nandyala Hussain, João Azevedo, Graham Hungerford
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://repositorio.inesctec.pt/handle/123456789/2113
Resumo: Erbium oxide (0.5 - 4 mol %) doped lithium boro tellurite (LBT) glasses have been prepared and the NIR emission band at 1.5µm characterized. By pumping with LED excitation sources at 495nm and 970nm, a broader NIR emission transition (4I13/2  4Il5/2) was observed. The Judd-Ofelt intensity parameters were derived for the 1 mol% Er3+ - doped LBT glass and compared with other tellurite host glasses. The full width at half the maximum (FWHM), stimulated emission cross sections and lifetimes for NIR luminescence transitions 4I13/2 to 4I15/2 are reported. For both excitation wavelengths, overall the decay times were found to decrease with increasing erbium content. The present study describes the excitation dependent luminescence properties for this NIR transition.
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spelling Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glassesErbium oxide (0.5 - 4 mol %) doped lithium boro tellurite (LBT) glasses have been prepared and the NIR emission band at 1.5µm characterized. By pumping with LED excitation sources at 495nm and 970nm, a broader NIR emission transition (4I13/2  4Il5/2) was observed. The Judd-Ofelt intensity parameters were derived for the 1 mol% Er3+ - doped LBT glass and compared with other tellurite host glasses. The full width at half the maximum (FWHM), stimulated emission cross sections and lifetimes for NIR luminescence transitions 4I13/2 to 4I15/2 are reported. For both excitation wavelengths, overall the decay times were found to decrease with increasing erbium content. The present study describes the excitation dependent luminescence properties for this NIR transition.2017-11-16T13:13:54Z2011-01-01T00:00:00Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.inesctec.pt/handle/123456789/2113engJoão CoelhoNandyala HussainJoão AzevedoGraham Hungerfordinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-05-15T10:20:43Zoai:repositorio.inesctec.pt:123456789/2113Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:53:31.781156Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
title Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
spellingShingle Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
João Coelho
title_short Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
title_full Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
title_fullStr Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
title_full_unstemmed Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
title_sort Luminescence and decay trends for NIR transition (4I13/2 to 4Il5/2) at 1.5 um in Er3+-doped LBT glasses
author João Coelho
author_facet João Coelho
Nandyala Hussain
João Azevedo
Graham Hungerford
author_role author
author2 Nandyala Hussain
João Azevedo
Graham Hungerford
author2_role author
author
author
dc.contributor.author.fl_str_mv João Coelho
Nandyala Hussain
João Azevedo
Graham Hungerford
description Erbium oxide (0.5 - 4 mol %) doped lithium boro tellurite (LBT) glasses have been prepared and the NIR emission band at 1.5µm characterized. By pumping with LED excitation sources at 495nm and 970nm, a broader NIR emission transition (4I13/2  4Il5/2) was observed. The Judd-Ofelt intensity parameters were derived for the 1 mol% Er3+ - doped LBT glass and compared with other tellurite host glasses. The full width at half the maximum (FWHM), stimulated emission cross sections and lifetimes for NIR luminescence transitions 4I13/2 to 4I15/2 are reported. For both excitation wavelengths, overall the decay times were found to decrease with increasing erbium content. The present study describes the excitation dependent luminescence properties for this NIR transition.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01T00:00:00Z
2011
2017-11-16T13:13:54Z
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://repositorio.inesctec.pt/handle/123456789/2113
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dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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