Polarimetric Plasmonic Sensing with Bowtie Nanoantenna Arrays

Abstract

We propose a polarimetric plasmonic biosensor based on bowtie nanoantenna array transducers. Through numerical simulations, based on the finite element method (FEM), we study the phase retardation between the components of light polarized parallel and perpendicular to the major axis of the bowties within the arrays. From a design for high volumetric sensitivity at a wavelength of 780 nm, sensitivities ∼5 rad/RIU is obtained, corresponding to a detection limit of ∼10−7 when using a polarimetric readout platform. Similarly, surface sensitivity of the same array is evaluated by simulating the phase retardation changes induced by the coverage of bioreceptors and analytes of the metallic nanostructures.

Publication DOI: https://doi.org/10.1007/s11468-014-9856-3
Divisions: Engineering & Applied Sciences > Aston Institute of Photonics Technology
Additional Information: © Springer Nature B.V. 2015. The final publication is available at Springer via http://dx.doi.org/10.1007/s11468-014-9856-3
Uncontrolled Keywords: FEM simulations,LSPR,Nanoantenna arrays,Optical sensing and biosensing,Polarimetry,Biochemistry,Biophysics,Biotechnology
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://link.sp ... 1468-014-9856-3 (Publisher URL)
PURE Output Type: Article
Published Date: 2015-06-01
Published Online Date: 2014-12-13
Authors: Calderón, Jonathan
Álvarez, Jesús
Martinez-Pastor, Juan
Hill, Daniel ( 0000-0003-3510-7783)

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