Amplified spontaneous emission of proton transfer dyes in polymers
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Physics |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000600004 |
Resumo: | We compare the Amplified Spontaneous Emission (ASE) of the proton transfer dyes 2-(2'-hydroxyphenyl) benzimidazole (HPBI) and 2-(2'-hydroxy-5'-chlorphenyl)benzimidazole (Cl-HPBI) in three different polymeric hosts under UV pulsed laser excitation. Pulseform and degradation of the dyes in the solid polymers were analysed. Spectroscopic data were used in a simple four-level kinetic rate equation system, in the attempt to explain the observed results, i.e. first order exponential decay of maximum output energy and pulse shortening. The model includes transitions for the normal and tautomer form of the molecule as well as intersystem crossing and triplet-triplet transitions. |
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Brazilian Journal of Physics |
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Amplified spontaneous emission of proton transfer dyes in polymersWe compare the Amplified Spontaneous Emission (ASE) of the proton transfer dyes 2-(2'-hydroxyphenyl) benzimidazole (HPBI) and 2-(2'-hydroxy-5'-chlorphenyl)benzimidazole (Cl-HPBI) in three different polymeric hosts under UV pulsed laser excitation. Pulseform and degradation of the dyes in the solid polymers were analysed. Spectroscopic data were used in a simple four-level kinetic rate equation system, in the attempt to explain the observed results, i.e. first order exponential decay of maximum output energy and pulse shortening. The model includes transitions for the normal and tautomer form of the molecule as well as intersystem crossing and triplet-triplet transitions.Sociedade Brasileira de Física2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000600004Brazilian Journal of Physics v.35 n.4a 2005reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332005000600004info:eu-repo/semantics/openAccessFellows,C. E.Täuber,U.Carvalho,C. E. M.Carvalhaes,C. G.eng2006-01-17T00:00:00Zoai:scielo:S0103-97332005000600004Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-01-17T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false |
dc.title.none.fl_str_mv |
Amplified spontaneous emission of proton transfer dyes in polymers |
title |
Amplified spontaneous emission of proton transfer dyes in polymers |
spellingShingle |
Amplified spontaneous emission of proton transfer dyes in polymers Fellows,C. E. |
title_short |
Amplified spontaneous emission of proton transfer dyes in polymers |
title_full |
Amplified spontaneous emission of proton transfer dyes in polymers |
title_fullStr |
Amplified spontaneous emission of proton transfer dyes in polymers |
title_full_unstemmed |
Amplified spontaneous emission of proton transfer dyes in polymers |
title_sort |
Amplified spontaneous emission of proton transfer dyes in polymers |
author |
Fellows,C. E. |
author_facet |
Fellows,C. E. Täuber,U. Carvalho,C. E. M. Carvalhaes,C. G. |
author_role |
author |
author2 |
Täuber,U. Carvalho,C. E. M. Carvalhaes,C. G. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Fellows,C. E. Täuber,U. Carvalho,C. E. M. Carvalhaes,C. G. |
description |
We compare the Amplified Spontaneous Emission (ASE) of the proton transfer dyes 2-(2'-hydroxyphenyl) benzimidazole (HPBI) and 2-(2'-hydroxy-5'-chlorphenyl)benzimidazole (Cl-HPBI) in three different polymeric hosts under UV pulsed laser excitation. Pulseform and degradation of the dyes in the solid polymers were analysed. Spectroscopic data were used in a simple four-level kinetic rate equation system, in the attempt to explain the observed results, i.e. first order exponential decay of maximum output energy and pulse shortening. The model includes transitions for the normal and tautomer form of the molecule as well as intersystem crossing and triplet-triplet transitions. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000600004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332005000600004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-97332005000600004 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
dc.source.none.fl_str_mv |
Brazilian Journal of Physics v.35 n.4a 2005 reponame:Brazilian Journal of Physics instname:Sociedade Brasileira de Física (SBF) instacron:SBF |
instname_str |
Sociedade Brasileira de Física (SBF) |
instacron_str |
SBF |
institution |
SBF |
reponame_str |
Brazilian Journal of Physics |
collection |
Brazilian Journal of Physics |
repository.name.fl_str_mv |
Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF) |
repository.mail.fl_str_mv |
sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br |
_version_ |
1754734862276755456 |