Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/7965 |
Resumo: | In this study, we present the production and characterization of a novel binary glass system: (100-x)SbPO4-xGeO2 where x = 30, 40, 50, 60, 70, 80 and 90 mol %. The dependence of GeO2 content on thermal, structural and optical properties were investigated by thermal analysis (DSC), Raman spectroscopy, UV-Visible absorption, infrared transmittance and M-lines techniques. Glass transition temperatures (Tg) shows an almost constant value around 400 °C when GeO2 content was increased. Thermal stability (ΔT = Tx-Tg) increases almost linearly with GeO2 content reaching a maximum value (300 °C). Ions Er3+ and Yb3+ were further incorporated into system SG in different proportions. Infrared and up-conversion emission processes were investigated. The emission spectra in the infrared region showed that the incorporation of Yb3+ ions into the glass composition increases the emission intensity at 1538 nm (4I13/2 4I15/2). The up-conversion processes showed a higher intensity emission at 522 nm and 544 nm (green) and 652 nm (red) regions and the emission mechanism has been the same as proposed in several works in literature. Finally, the glass sample showing the highest emission intensity at 1538 nm was chosen for micromachining using femtosecond laser. The waveguides having the lowest propagation losses were used for the optical internal gain proceeds. The best result obtained for internal gain at 1535 nm was around 1.7 dB/cm and this value is in agreement with other glass systems based on germanium and phosphates glasses present in literature. |
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Montesso, MuriloNalin, Marcelohttp://lattes.cnpq.br/3349586880746735http://lattes.cnpq.br/8981815637926638227e5fa0-f803-4511-aeea-7aa10bf351b22016-10-20T16:14:23Z2016-10-20T16:14:23Z2016-03-23MONTESSO, Murilo. Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras. 2016. Tese (Doutorado em Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7965.https://repositorio.ufscar.br/handle/ufscar/7965In this study, we present the production and characterization of a novel binary glass system: (100-x)SbPO4-xGeO2 where x = 30, 40, 50, 60, 70, 80 and 90 mol %. The dependence of GeO2 content on thermal, structural and optical properties were investigated by thermal analysis (DSC), Raman spectroscopy, UV-Visible absorption, infrared transmittance and M-lines techniques. Glass transition temperatures (Tg) shows an almost constant value around 400 °C when GeO2 content was increased. Thermal stability (ΔT = Tx-Tg) increases almost linearly with GeO2 content reaching a maximum value (300 °C). Ions Er3+ and Yb3+ were further incorporated into system SG in different proportions. Infrared and up-conversion emission processes were investigated. The emission spectra in the infrared region showed that the incorporation of Yb3+ ions into the glass composition increases the emission intensity at 1538 nm (4I13/2 4I15/2). The up-conversion processes showed a higher intensity emission at 522 nm and 544 nm (green) and 652 nm (red) regions and the emission mechanism has been the same as proposed in several works in literature. Finally, the glass sample showing the highest emission intensity at 1538 nm was chosen for micromachining using femtosecond laser. The waveguides having the lowest propagation losses were used for the optical internal gain proceeds. The best result obtained for internal gain at 1535 nm was around 1.7 dB/cm and this value is in agreement with other glass systems based on germanium and phosphates glasses present in literature.Neste estudo, foi realizado a preparação e caracterização do sistema vítreo: (100-x) SbPO4-xGeO2 (SG), onde x varia entre 30 e 90% em mol. A dependência da concentração de GeO2 nas propriedades térmicas, ópticas e estruturais foram estudadas. O comportamento térmico foi investigado através da análise térmica (DSC), enquanto as propriedades estruturais foram estudadas por espectroscopia de espalhamento Raman. As propriedades ópticas foram avaliadas usando as espectroscopias na região do UV-Vis, infravermelho e M-Lines. No sistema SG a temperatura de transição vítrea (Tg) apresenta uma pequena variação e se encontra por volta de 400 °C quando a concentração de GeO2 foi alterada. O parâmetro de estabilidade térmica (ΔT = Tx-Tg) aumenta quase linearmente com o aumento da quantidade de GeO2, alcançando um valor máximo de 300 °C. Para o sistema SG foram incorporados ainda íons Er3+ e Yb3+ em diferentes proporções e as emissões na região do infravermelho e os processos de conversão ascendente de energia (upconversion) foram investigados. Os espectros de emissão na região do infravermelho mostram que a incorporação de íons Yb3+ na composição química do vidro, aumenta a intensidade de emissão em 1538 nm (4I13/2 4I15/2). Os processos de up-conversion mostram emissões de alta intensidade na região do verde (522 e 544 nm) e vermelho (652 nm), e os mecanismos das emissões foram estudados e propostos. Por fim, a amostra com a maior intensidade de emissão em 1538 nm foi escolhida para a realização da microfabricação de guias ópticos, usando lasers de femtossegundo. Os guias de onda que apresentaram as menores perdas por propagação, foram utilizados para as medidas de amplificação óptica.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)porUniversidade Federal de São CarlosCâmpus São CarlosPrograma de Pós-Graduação em Química - PPGQUFSCarVidrosÓxido de germânioMicrofabricaçãoÍons terras-rarasGanho internoGlassesGermanium oxideMicromachiningRare-earth ionsInternal gainCIENCIAS EXATAS E DA TERRA::QUIMICAMicrofabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-rarasOptical waveguide micromachinig in rare-earth doped heavy metal oxide glassesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisOnline600600ccf858e5-4b97-4c19-a133-4381ac697c20info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALTeseMM.pdfTeseMM.pdfapplication/pdf4347312https://repositorio.ufscar.br/bitstream/ufscar/7965/1/TeseMM.pdfa5a64729ea719b0ac57b31c2cdeeb425MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81957https://repositorio.ufscar.br/bitstream/ufscar/7965/2/license.txtae0398b6f8b235e40ad82cba6c50031dMD52TEXTTeseMM.pdf.txtTeseMM.pdf.txtExtracted texttext/plain223542https://repositorio.ufscar.br/bitstream/ufscar/7965/3/TeseMM.pdf.txt28ca270283992e899c5da70a10c7590eMD53THUMBNAILTeseMM.pdf.jpgTeseMM.pdf.jpgIM Thumbnailimage/jpeg9736https://repositorio.ufscar.br/bitstream/ufscar/7965/4/TeseMM.pdf.jpg8a659650b397e2f84365bf8121b3b44cMD54ufscar/79652023-09-18 18:31:06.302oai:repositorio.ufscar.br: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Repositório InstitucionalPUBhttps://repositorio.ufscar.br/oai/requestopendoar:43222023-09-18T18:31:06Repositório Institucional da UFSCAR - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.por.fl_str_mv |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
dc.title.alternative.eng.fl_str_mv |
Optical waveguide micromachinig in rare-earth doped heavy metal oxide glasses |
title |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
spellingShingle |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras Montesso, Murilo Vidros Óxido de germânio Microfabricação Íons terras-raras Ganho interno Glasses Germanium oxide Micromachining Rare-earth ions Internal gain CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
title_full |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
title_fullStr |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
title_full_unstemmed |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
title_sort |
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras |
author |
Montesso, Murilo |
author_facet |
Montesso, Murilo |
author_role |
author |
dc.contributor.authorlattes.por.fl_str_mv |
http://lattes.cnpq.br/8981815637926638 |
dc.contributor.author.fl_str_mv |
Montesso, Murilo |
dc.contributor.advisor1.fl_str_mv |
Nalin, Marcelo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3349586880746735 |
dc.contributor.authorID.fl_str_mv |
227e5fa0-f803-4511-aeea-7aa10bf351b2 |
contributor_str_mv |
Nalin, Marcelo |
dc.subject.por.fl_str_mv |
Vidros Óxido de germânio Microfabricação Íons terras-raras Ganho interno |
topic |
Vidros Óxido de germânio Microfabricação Íons terras-raras Ganho interno Glasses Germanium oxide Micromachining Rare-earth ions Internal gain CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Glasses Germanium oxide Micromachining Rare-earth ions Internal gain |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
In this study, we present the production and characterization of a novel binary glass system: (100-x)SbPO4-xGeO2 where x = 30, 40, 50, 60, 70, 80 and 90 mol %. The dependence of GeO2 content on thermal, structural and optical properties were investigated by thermal analysis (DSC), Raman spectroscopy, UV-Visible absorption, infrared transmittance and M-lines techniques. Glass transition temperatures (Tg) shows an almost constant value around 400 °C when GeO2 content was increased. Thermal stability (ΔT = Tx-Tg) increases almost linearly with GeO2 content reaching a maximum value (300 °C). Ions Er3+ and Yb3+ were further incorporated into system SG in different proportions. Infrared and up-conversion emission processes were investigated. The emission spectra in the infrared region showed that the incorporation of Yb3+ ions into the glass composition increases the emission intensity at 1538 nm (4I13/2 4I15/2). The up-conversion processes showed a higher intensity emission at 522 nm and 544 nm (green) and 652 nm (red) regions and the emission mechanism has been the same as proposed in several works in literature. Finally, the glass sample showing the highest emission intensity at 1538 nm was chosen for micromachining using femtosecond laser. The waveguides having the lowest propagation losses were used for the optical internal gain proceeds. The best result obtained for internal gain at 1535 nm was around 1.7 dB/cm and this value is in agreement with other glass systems based on germanium and phosphates glasses present in literature. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-10-20T16:14:23Z |
dc.date.available.fl_str_mv |
2016-10-20T16:14:23Z |
dc.date.issued.fl_str_mv |
2016-03-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
MONTESSO, Murilo. Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras. 2016. Tese (Doutorado em Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7965. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/7965 |
identifier_str_mv |
MONTESSO, Murilo. Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras. 2016. Tese (Doutorado em Química) – Universidade Federal de São Carlos, São Carlos, 2016. Disponível em: https://repositorio.ufscar.br/handle/ufscar/7965. |
url |
https://repositorio.ufscar.br/handle/ufscar/7965 |
dc.language.iso.fl_str_mv |
por |
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por |
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600 600 |
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ccf858e5-4b97-4c19-a133-4381ac697c20 |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus São Carlos |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química - PPGQ |
dc.publisher.initials.fl_str_mv |
UFSCar |
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Universidade Federal de São Carlos Câmpus São Carlos |
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