Open AccessIntegrated electrically driven surface plasmon resonance device for biosensing applications
Author(s) -
Álvaro Jiménez,
Dominic Lepage,
J. Beauvais,
Jan J. Dubowski
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.019763
Subject(s) - biosensor , surface plasmon resonance , materials science , surface plasmon , optics , optoelectronics , surface plasmon polariton , plasmon , localized surface plasmon , hyperspectral imaging , nanotechnology , nanoparticle , physics , remote sensing , geology
Compact and portable surface plasmon resonance (SPR) biosensors of high sensitivities can be made through integration of discrete components in a single device. We report on a device comprising a vertical cavity light emitting diode (VLED) integrated with gold-based biosensing nanostructures fabricated atop its surface. Coupling of surface plasmon waves was achieved by the introduction of a spacer SiO2 layer located between the light source and the functionalized Au thin film. The SPR signal was extracted in far field with a Au-based nanograting and detected using a custom designed hyperspectral imager. We discuss the performance of a VLED-based SPR device employed for detection of different concentration saltwater solutions.