Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect

The bolometric effect allows us to electrically monitor spectral characteristics of plasmonic sensors; it provides a lower cost and simpler sample characterization compared with angular and spectral signal retrieval techniques. In our device, a monochromatic light source illuminates a spectrally sel...

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Detalles Bibliográficos
Autores: Hamdy Mohamed Elshorbagy, Mahmoud, Cuadrado Conde, Alexander, Gómez Pedrero, José Antonio, Alda, Javier
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/6060
Acceso en línea:https://hdl.handle.net/20.500.14352/6060
Access Level:acceso abierto
Palabra clave:537.52
539.2:620.1
Plasmonics
Nanophotonics
Bolometer
Transduction
Óptica (Física)
Optoelectrónica
2209.19 Óptica Física
id ES_7eaa85d963840b57605c7d9dc347cfdf
oai_identifier_str oai:docta.ucm.es:20.500.14352/6060
network_acronym_str ES
network_name_str España
repository_id_str
spelling Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric EffectHamdy Mohamed Elshorbagy, MahmoudCuadrado Conde, AlexanderGómez Pedrero, José AntonioAlda, Javier537.52539.2:620.1PlasmonicsNanophotonicsBolometerTransductionÓptica (Física)Optoelectrónica2209.19 Óptica FísicaThe bolometric effect allows us to electrically monitor spectral characteristics of plasmonic sensors; it provides a lower cost and simpler sample characterization compared with angular and spectral signal retrieval techniques. In our device, a monochromatic light source illuminates a spectrally selective plasmonic nanostructure. This arrangement is formed by a dielectric low-order diffraction grating that combines two materials with a high-contrast in the index of refraction. Light interacts with this structure and reaches a thin metallic layer, that is also exposed to the analyte. The narrow absorption generated by surface plasmon resonances hybridized with low-order grating modes, heats the metal layer where plasmons are excited. The temperature change caused by this absorption modifies the resistance of a metallic layer through the bolometric effect. Therefore, a refractometric change in the analyte varies the electric resistivity under resonant excitation. We monitor the change in resistance by an external electric circuit. This optoelectronic feature must be included in the definition of the sensitivity and figure of merit (FOM) parameters. Besides the competitive value of the FOM (around 400 RIU −1 , where RIU means refractive index unit), the proposed system is fully based on opto-electronic measurements. The device is modeled, simulated and analyzed considering fabrication and experimental constrains. The proposed refractometer behaves linearly within a range centered around the index of refraction of aqueous media, n≃1.33 , and can be applied to the sensing for research in bio-physics, biology, and environmental sciences.MDPIUniversidad Complutense de Madrid20202020-02-1120202020-02-11journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/6060reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/60602026-06-02T12:44:21Z
dc.title.none.fl_str_mv Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
title Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
spellingShingle Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
Hamdy Mohamed Elshorbagy, Mahmoud
537.52
539.2:620.1
Plasmonics
Nanophotonics
Bolometer
Transduction
Óptica (Física)
Optoelectrónica
2209.19 Óptica Física
title_short Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
title_full Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
title_fullStr Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
title_full_unstemmed Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
title_sort Opto-Electronic Refractometric Sensor Based on Surface Plasmon Resonances and the Bolometric Effect
dc.creator.none.fl_str_mv Hamdy Mohamed Elshorbagy, Mahmoud
Cuadrado Conde, Alexander
Gómez Pedrero, José Antonio
Alda, Javier
author Hamdy Mohamed Elshorbagy, Mahmoud
author_facet Hamdy Mohamed Elshorbagy, Mahmoud
Cuadrado Conde, Alexander
Gómez Pedrero, José Antonio
Alda, Javier
author_role author
author2 Cuadrado Conde, Alexander
Gómez Pedrero, José Antonio
Alda, Javier
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 537.52
539.2:620.1
Plasmonics
Nanophotonics
Bolometer
Transduction
Óptica (Física)
Optoelectrónica
2209.19 Óptica Física
topic 537.52
539.2:620.1
Plasmonics
Nanophotonics
Bolometer
Transduction
Óptica (Física)
Optoelectrónica
2209.19 Óptica Física
description The bolometric effect allows us to electrically monitor spectral characteristics of plasmonic sensors; it provides a lower cost and simpler sample characterization compared with angular and spectral signal retrieval techniques. In our device, a monochromatic light source illuminates a spectrally selective plasmonic nanostructure. This arrangement is formed by a dielectric low-order diffraction grating that combines two materials with a high-contrast in the index of refraction. Light interacts with this structure and reaches a thin metallic layer, that is also exposed to the analyte. The narrow absorption generated by surface plasmon resonances hybridized with low-order grating modes, heats the metal layer where plasmons are excited. The temperature change caused by this absorption modifies the resistance of a metallic layer through the bolometric effect. Therefore, a refractometric change in the analyte varies the electric resistivity under resonant excitation. We monitor the change in resistance by an external electric circuit. This optoelectronic feature must be included in the definition of the sensitivity and figure of merit (FOM) parameters. Besides the competitive value of the FOM (around 400 RIU −1 , where RIU means refractive index unit), the proposed system is fully based on opto-electronic measurements. The device is modeled, simulated and analyzed considering fabrication and experimental constrains. The proposed refractometer behaves linearly within a range centered around the index of refraction of aqueous media, n≃1.33 , and can be applied to the sensing for research in bio-physics, biology, and environmental sciences.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-02-11
2020
2020-02-11
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/6060
url https://hdl.handle.net/20.500.14352/6060
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución 3.0 España
https://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411752430534657
score 15,300719

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