Polarimetric Plasmonic Sensing with Bowtie Nanoantenna Arrays

Jonathan Calderón; Jesús Álvarez; Juan Martinez-Pastor; Daniel Hill

doi:10.1007/s11468-014-9856-3

Polarimetric Plasmonic Sensing with Bowtie Nanoantenna Arrays

Jonathan Calderón^*, Jesús Álvarez, Juan Martinez-Pastor, Daniel Hill

^*Corresponding author for this work

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	703-711
Number of pages	9
Journal	Plasmonics
Volume	10
Issue number	3
Early online date	13 Dec 2014
DOIs	https://doi.org/10.1007/s11468-014-9856-3
Publication status	Published - 1 Jun 2015

Bibliographical note

Keywords

FEM simulations
LSPR
Nanoantenna arrays
Optical sensing and biosensing
Polarimetry

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10.1007/s11468-014-9856-3

Polarimetric_plasmonic_sensing_with_bowtie_nanoantenna_arrays
© Springer Nature B.V. 2015. The final publication is available at Springer via http://dx.doi.org/10.1007/s11468-014-9856-3
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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.",

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AU - Calderón, Jonathan

AU - Álvarez, Jesús

AU - Martinez-Pastor, Juan

AU - Hill, Daniel

N1 - © Springer Nature B.V. 2015. The final publication is available at Springer via http://dx.doi.org/10.1007/s11468-014-9856-3

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Polarimetric Plasmonic Sensing with Bowtie Nanoantenna Arrays

Abstract

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Keywords

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