Polarimetric Plasmonic Sensing with Bowtie Nanoantenna Arrays

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

*Corresponding author for this work

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)703-711
Number of pages9
JournalPlasmonics
Volume10
Issue number3
Early online date13 Dec 2014
DOIs
Publication statusPublished - 1 Jun 2015

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Bibliographical note

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

Keywords

  • FEM simulations
  • LSPR
  • Nanoantenna arrays
  • Optical sensing and biosensing
  • Polarimetry

Cite this

Calderón, J., Álvarez, J., Martinez-Pastor, J., & Hill, D. (2015). Polarimetric Plasmonic Sensing with Bowtie Nanoantenna Arrays. Plasmonics, 10(3), 703-711. https://doi.org/10.1007/s11468-014-9856-3