Bowtie plasmonic nanoantenna arrays for polarimetric optical biosensing

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

doi:10.1117/12.2039644

Bowtie plasmonic nanoantenna arrays for polarimetric optical biosensing

Jonathan Calderón, Jesús Álvarez, Juan Martínez-Pastor, Daniel Hill

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report on the first polarimetric plasmonic biosensor based on arrays of bowtie nanoantennas. Using the Finite Element Method (FEM) the phase retardation between the components of light polarized parallel and perpendicular to the axis of the nanoantennas is studied. After optimizing them for high volumetric sensitivity at a wavelength of 780 nm, sensitivities ~5 rad/RIU are obtained, corresponding to a detection limit ~10^-7 RIU when using the polarimetric readout platform. Surface sensitivity values resulted from studies of phase retardation changes from a coverage of bioreceptors and analytes.

Original language	English
Article number	89330I
Journal	Proceedings of SPIE - International Society for Optical Engineering
Volume	8933
DOIs	https://doi.org/10.1117/12.2039644
Publication status	Published - 5 Mar 2014
Event	Frontiers in Biological Detection: From Nanosensors to Systems VI - San Francisco, CA, United States Duration: 1 Feb 2014 → 2 Feb 2014

Bibliographical note

Copyright 2014 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

FEM simulations
gold bowties
LSPR
nanoantenna arrays
optical sensing and biosensing
phase retardation
polarimetry
surface plasmon polaritons

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10.1117/12.2039644

Bowtie plasmonic nanoantenna arrays for polarimetric optical biosensing
Copyright 2014 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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Cite this

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abstract = "We report on the first polarimetric plasmonic biosensor based on arrays of bowtie nanoantennas. Using the Finite Element Method (FEM) the phase retardation between the components of light polarized parallel and perpendicular to the axis of the nanoantennas is studied. After optimizing them for high volumetric sensitivity at a wavelength of 780 nm, sensitivities ~5 rad/RIU are obtained, corresponding to a detection limit ~10-7 RIU when using the polarimetric readout platform. Surface sensitivity values resulted from studies of phase retardation changes from a coverage of bioreceptors and analytes.",

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AU - Álvarez, Jesús

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AU - Hill, Daniel

N1 - Copyright 2014 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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Bowtie plasmonic nanoantenna arrays for polarimetric optical biosensing

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Keywords

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