Laser-like emission from dye-doped nanostructured synthetic opals

Detalhes bibliográficos
Autor(a) principal: De Araújo, Cid B.
Data de Publicação: 2003
Outros Autores: Alencar, Marcio A. R. C., Maciel, Glauco S., Bertholdo, Roberto, Messaddeq, Younes
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1109/EQEC.2003.1314289
http://hdl.handle.net/11449/220494
Resumo: 3-D silica based inverse opal sample were prepared using close packed crystals of latex spheres as templates for silica polymerization. The samples were characterized by electron microscopy which reveals a fcc crystalline structure presenting pores with diameter of 210 nm and walls with 70 nm of thickness. The samples were infiltrated with Rhodamine 6G by soaking them in an ethanolic solution during 2 min and leaving it to dry at ambient for 2 hours. The second harmonic of a Nd:YAG laser at 532 nm (6 ns, 5 Hz) was used to excite the samples. The laser beam was focused on a region of 3 × 10-5 cm2 forming an angle of incidence of 49° with respect to, the normal of the crystal surface. The opal structure presents no absorption in the visible range but, due to the presence of dye molecules, the laser light is absorbed. The incident laser intensity was varied and the dye fluorescence was collected throughout a monochromator to monitor its characteristics.
id UNSP_3c1a289445a346b70ba8931ea73e078f
oai_identifier_str oai:repositorio.unesp.br:11449/220494
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Laser-like emission from dye-doped nanostructured synthetic opals3-D silica based inverse opal sample were prepared using close packed crystals of latex spheres as templates for silica polymerization. The samples were characterized by electron microscopy which reveals a fcc crystalline structure presenting pores with diameter of 210 nm and walls with 70 nm of thickness. The samples were infiltrated with Rhodamine 6G by soaking them in an ethanolic solution during 2 min and leaving it to dry at ambient for 2 hours. The second harmonic of a Nd:YAG laser at 532 nm (6 ns, 5 Hz) was used to excite the samples. The laser beam was focused on a region of 3 × 10-5 cm2 forming an angle of incidence of 49° with respect to, the normal of the crystal surface. The opal structure presents no absorption in the visible range but, due to the presence of dye molecules, the laser light is absorbed. The incident laser intensity was varied and the dye fluorescence was collected throughout a monochromator to monitor its characteristics.Departamento de Física Universidade Federal de PernambucoInstituto de Química Universidade do Estado de São PauloUniversidade Federal de Pernambuco (UFPE)Universidade do Estado de São PauloDe Araújo, Cid B.Alencar, Marcio A. R. C.Maciel, Glauco S.Bertholdo, RobertoMessaddeq, Younes2022-04-28T19:01:44Z2022-04-28T19:01:44Z2003-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject431http://dx.doi.org/10.1109/EQEC.2003.13142892003 European Quantum Electronics Conference, EQEC 2003, p. 431-.http://hdl.handle.net/11449/22049410.1109/EQEC.2003.13142892-s2.0-84947203540Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng2003 European Quantum Electronics Conference, EQEC 2003info:eu-repo/semantics/openAccess2022-04-28T19:01:44Zoai:repositorio.unesp.br:11449/220494Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:59:11.459319Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Laser-like emission from dye-doped nanostructured synthetic opals
title Laser-like emission from dye-doped nanostructured synthetic opals
spellingShingle Laser-like emission from dye-doped nanostructured synthetic opals
De Araújo, Cid B.
title_short Laser-like emission from dye-doped nanostructured synthetic opals
title_full Laser-like emission from dye-doped nanostructured synthetic opals
title_fullStr Laser-like emission from dye-doped nanostructured synthetic opals
title_full_unstemmed Laser-like emission from dye-doped nanostructured synthetic opals
title_sort Laser-like emission from dye-doped nanostructured synthetic opals
author De Araújo, Cid B.
author_facet De Araújo, Cid B.
Alencar, Marcio A. R. C.
Maciel, Glauco S.
Bertholdo, Roberto
Messaddeq, Younes
author_role author
author2 Alencar, Marcio A. R. C.
Maciel, Glauco S.
Bertholdo, Roberto
Messaddeq, Younes
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Pernambuco (UFPE)
Universidade do Estado de São Paulo
dc.contributor.author.fl_str_mv De Araújo, Cid B.
Alencar, Marcio A. R. C.
Maciel, Glauco S.
Bertholdo, Roberto
Messaddeq, Younes
description 3-D silica based inverse opal sample were prepared using close packed crystals of latex spheres as templates for silica polymerization. The samples were characterized by electron microscopy which reveals a fcc crystalline structure presenting pores with diameter of 210 nm and walls with 70 nm of thickness. The samples were infiltrated with Rhodamine 6G by soaking them in an ethanolic solution during 2 min and leaving it to dry at ambient for 2 hours. The second harmonic of a Nd:YAG laser at 532 nm (6 ns, 5 Hz) was used to excite the samples. The laser beam was focused on a region of 3 × 10-5 cm2 forming an angle of incidence of 49° with respect to, the normal of the crystal surface. The opal structure presents no absorption in the visible range but, due to the presence of dye molecules, the laser light is absorbed. The incident laser intensity was varied and the dye fluorescence was collected throughout a monochromator to monitor its characteristics.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
2022-04-28T19:01:44Z
2022-04-28T19:01:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1109/EQEC.2003.1314289
2003 European Quantum Electronics Conference, EQEC 2003, p. 431-.
http://hdl.handle.net/11449/220494
10.1109/EQEC.2003.1314289
2-s2.0-84947203540
url http://dx.doi.org/10.1109/EQEC.2003.1314289
http://hdl.handle.net/11449/220494
identifier_str_mv 2003 European Quantum Electronics Conference, EQEC 2003, p. 431-.
10.1109/EQEC.2003.1314289
2-s2.0-84947203540
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2003 European Quantum Electronics Conference, EQEC 2003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 431
dc.source.none.fl_str_mv Scopus
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_ 1808128444151627776