A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.optmat.2018.10.044 http://hdl.handle.net/11449/184167 |
Resumo: | This work reports the signal enhancement of Yb3+/Er3+ codoped PbO-GeO2 pedestal waveguides due to gold nanoparticles deposited over the core layer. The pedestal structure was obtained by conventional photolithography and plasma etching with a new procedure that does not use metallic hard-masks that normally introduce roughness, leading to light scattering. This new procedure brings advantages that benefit light guiding, reducing the propagation losses. Yb (3+)/Er3+ codoped PbO-GeO2 thin film was obtained by RF Magnetron Sputtering deposition and was used as core layer (410 nm height). In order to cover the core with gold nanoparticles the sputtering technique was used, followed by annealing at 400 degrees C during 1 h. The minimum propagation losses obtained were of 1.0 dB/cm at 1068 nm. Scanning Electron Microscopy (SEM) was employed for the waveguides structure inspection and transmission electronic microscopy (TEM) was used to verify the presence of gold nanoparticles on the waveguides. It was observed an enhancement of 180% for the relative gain that reached 7.8 dB/cm at 1530 nm, for an optical waveguide with 6 pm core width, under 980 nm excitation (pump power of 60 mW), attributed to the local field enhancement in the vicinity of the gold nanoparticles. The new fabrication process presented in this work opens possibilities for optical amplifiers with low propagation losses based on different metal dielectric composites, as well as other waveguide-based devices. |
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A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticlesPedestal waveguidesOptical amplifiersGennanate thin filmsRare-earthionsSputtering depositionGold nanoparticlesThis work reports the signal enhancement of Yb3+/Er3+ codoped PbO-GeO2 pedestal waveguides due to gold nanoparticles deposited over the core layer. The pedestal structure was obtained by conventional photolithography and plasma etching with a new procedure that does not use metallic hard-masks that normally introduce roughness, leading to light scattering. This new procedure brings advantages that benefit light guiding, reducing the propagation losses. Yb (3+)/Er3+ codoped PbO-GeO2 thin film was obtained by RF Magnetron Sputtering deposition and was used as core layer (410 nm height). In order to cover the core with gold nanoparticles the sputtering technique was used, followed by annealing at 400 degrees C during 1 h. The minimum propagation losses obtained were of 1.0 dB/cm at 1068 nm. Scanning Electron Microscopy (SEM) was employed for the waveguides structure inspection and transmission electronic microscopy (TEM) was used to verify the presence of gold nanoparticles on the waveguides. It was observed an enhancement of 180% for the relative gain that reached 7.8 dB/cm at 1530 nm, for an optical waveguide with 6 pm core width, under 980 nm excitation (pump power of 60 mW), attributed to the local field enhancement in the vicinity of the gold nanoparticles. The new fabrication process presented in this work opens possibilities for optical amplifiers with low propagation losses based on different metal dielectric composites, as well as other waveguide-based devices.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)National Institute of Photonics (INCT de Fotonica)Univ Sao Paulo, Escola Politecn, BR-05508010 Sao Paulo, SP, BrazilFac Tecnol Sao Paulo, Lab Tecnol Mat Foton & Optoeletron, BR-01124060 Sao Paulo, SP, BrazilUniv Estadual Paulista, BR-13876750 Sao Joao Da Boa Vista, SP, BrazilUniv Estadual Campinas, Inst Fis Gleb Wataghin, Dept Fis Aplicada, BR-13083859 Campinas, SP, BrazilUniv Estadual Paulista, BR-13876750 Sao Joao Da Boa Vista, SP, BrazilCNPq: 303548/2015-0National Institute of Photonics (INCT de Fotonica): 465763/2014-6Elsevier B.V.Universidade de São Paulo (USP)Fac Tecnol Sao PauloUniversidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Bomfim, Francisco A.Rangel, Ricardo C.Silva, Davinson M. daCarvalho, Daniel O. [UNESP]Melo, Emerson G.Alayo, Marco I.Kassab, Luciana R. P.2019-10-04T11:55:33Z2019-10-04T11:55:33Z2018-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article433-440http://dx.doi.org/10.1016/j.optmat.2018.10.044Optical Materials. Amsterdam: Elsevier Science Bv, v. 86, p. 433-440, 2018.0925-3467http://hdl.handle.net/11449/18416710.1016/j.optmat.2018.10.044WOS:000453499500060Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOptical Materialsinfo:eu-repo/semantics/openAccess2021-10-23T19:23:19Zoai:repositorio.unesp.br:11449/184167Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:23:19Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
title |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
spellingShingle |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles Bomfim, Francisco A. Pedestal waveguides Optical amplifiers Gennanate thin films Rare-earthions Sputtering deposition Gold nanoparticles |
title_short |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
title_full |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
title_fullStr |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
title_full_unstemmed |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
title_sort |
A new fabrication process of pedestal waveguides based on metal dielectric composites of Yb3+ /Er3+ codoped PbO-GeO2 thin films with gold nanoparticles |
author |
Bomfim, Francisco A. |
author_facet |
Bomfim, Francisco A. Rangel, Ricardo C. Silva, Davinson M. da Carvalho, Daniel O. [UNESP] Melo, Emerson G. Alayo, Marco I. Kassab, Luciana R. P. |
author_role |
author |
author2 |
Rangel, Ricardo C. Silva, Davinson M. da Carvalho, Daniel O. [UNESP] Melo, Emerson G. Alayo, Marco I. Kassab, Luciana R. P. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Fac Tecnol Sao Paulo Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Bomfim, Francisco A. Rangel, Ricardo C. Silva, Davinson M. da Carvalho, Daniel O. [UNESP] Melo, Emerson G. Alayo, Marco I. Kassab, Luciana R. P. |
dc.subject.por.fl_str_mv |
Pedestal waveguides Optical amplifiers Gennanate thin films Rare-earthions Sputtering deposition Gold nanoparticles |
topic |
Pedestal waveguides Optical amplifiers Gennanate thin films Rare-earthions Sputtering deposition Gold nanoparticles |
description |
This work reports the signal enhancement of Yb3+/Er3+ codoped PbO-GeO2 pedestal waveguides due to gold nanoparticles deposited over the core layer. The pedestal structure was obtained by conventional photolithography and plasma etching with a new procedure that does not use metallic hard-masks that normally introduce roughness, leading to light scattering. This new procedure brings advantages that benefit light guiding, reducing the propagation losses. Yb (3+)/Er3+ codoped PbO-GeO2 thin film was obtained by RF Magnetron Sputtering deposition and was used as core layer (410 nm height). In order to cover the core with gold nanoparticles the sputtering technique was used, followed by annealing at 400 degrees C during 1 h. The minimum propagation losses obtained were of 1.0 dB/cm at 1068 nm. Scanning Electron Microscopy (SEM) was employed for the waveguides structure inspection and transmission electronic microscopy (TEM) was used to verify the presence of gold nanoparticles on the waveguides. It was observed an enhancement of 180% for the relative gain that reached 7.8 dB/cm at 1530 nm, for an optical waveguide with 6 pm core width, under 980 nm excitation (pump power of 60 mW), attributed to the local field enhancement in the vicinity of the gold nanoparticles. The new fabrication process presented in this work opens possibilities for optical amplifiers with low propagation losses based on different metal dielectric composites, as well as other waveguide-based devices. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-01 2019-10-04T11:55:33Z 2019-10-04T11:55:33Z |
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://dx.doi.org/10.1016/j.optmat.2018.10.044 Optical Materials. Amsterdam: Elsevier Science Bv, v. 86, p. 433-440, 2018. 0925-3467 http://hdl.handle.net/11449/184167 10.1016/j.optmat.2018.10.044 WOS:000453499500060 |
url |
http://dx.doi.org/10.1016/j.optmat.2018.10.044 http://hdl.handle.net/11449/184167 |
identifier_str_mv |
Optical Materials. Amsterdam: Elsevier Science Bv, v. 86, p. 433-440, 2018. 0925-3467 10.1016/j.optmat.2018.10.044 WOS:000453499500060 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Optical Materials |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
433-440 |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
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_ |
1797790211984326656 |