Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/35452
Title: Enhanced transverse magneto-optical Kerr effect in magnetoplasmonic crystals for the design of highly sensitive plasmonic (Bio)sensing platforms
Authors: Diaz-Valencia, B. F.
Mejía-Salazar, J. R.
Oliveira, Osvaldo N. Jr.
Porras-Montenegro, N.
Albella Echave, Pablo 
UNESCO Clasification: 22 Física
2209 Óptica
Keywords: Resonance
Monolayers
Arrays
Sensor
Films, et al
Issue Date: 2017
Journal: ACS Omega 
Abstract: We propose a highly sensitive sensor based on enhancing the transversal magneto-optical Kerr effect (TMOKE) through excitation of surface plasmon resonances in a novel and simple architecture, which consists of a metal grating on a metal magneto-optical layer. Detection of the change in the refractive index of the analyte medium is made by monitoring the angular shift of the Fano-like resonances associated with TMOKE. A higher resolution is obtained with this technique than with reflectance curves. The key aspect of the novel architecture is to achieve excitation of surface plasmon resonances mainly localized at the sensing layer, where interaction with the analyte occurs. This led to a high sensitivity, S = 190 degrees RIU-1, and high performance with a figure of merit of the order of 10(3), which can be exploited in sensors and biosensors.
URI: http://hdl.handle.net/10553/35452
ISSN: 2470-1343
DOI: 10.1021/acsomega.7b01458
Source: ACS Omega [ISSN 2470-1343], v. 2 (11), p. 7682-7685
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