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Título:
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Plasmonic Sensors Based on Funneling Light Through Nanophotonic Structures
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Autores:
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Elshorbagy, Mahmoud Hamdy Mohamed ;
Cuadrado Conde, Alexander ;
Alda, Javier
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Tipo de documento:
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texto impreso
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Editorial:
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Springer Science+Business Media, 2020-01-03
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Optica
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Tipo = Artículo
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Resumen:
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We present a refractometric sensor realized as a stack of metallic gratings with subwavelength features and embedded within a low-index dielectric medium. Light is strongly confined through funneling mechanisms and excites resonances that sense the analyte medium. Two terminations of the structure are compared. One of them has a dielectric medium in contact with the analyte and exploits the selective spectral transmission of the structure. The other design has a metallic continuous layer that generates surface plasmon resonances at the metal/analyte interface. Both designs respond with narrow spectral features that are sensible to the change in the refractive index of the analyte and can be used for sensing biomedical samples.
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En línea:
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https://eprints.ucm.es/59553/1/elshorbagy_funneling_plasmonics20.pdf
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