RT Journal Article
T1 Plasmonic Sensors Based on Funneling Light Through Nanophotonic Structures
A1 Hamdy Mohamed Elshorbagy, Mahmoud
A1 Cuadrado Conde, Alexander
A1 Alda, Javier
AB 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.
PB Springer Science+Business Media
SN 1557-1955
YR 2020
FD 2020-01-03
LK https://hdl.handle.net/20.500.14352/6096
UL https://hdl.handle.net/20.500.14352/6096
LA eng
NO Received: 12 september 2019; Accepted: 04 december 2019; Published: 03 january 2020
NO Egyptian Ministry of Higher Education
DS Docta Complutense
RD 19 mar 2026