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Proceedings Paper

Development of portable SPR sensor devices based on integrated periodic arrays of nanoholes
Author(s): F. Eftekhari; J. Ferreira; M. L. J. Santos; C. Escobedo; A. G. Brolo; D. Sinton; R. Gordon
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Paper Abstract

Periodic arrays of nanoholes are being developed by several groups for integrated and portable real-time sensing based on surface plasmon resonance (SPR). Recent advances have allowed for nanohole sensitivity comparable to ATR SPR. Here, we will present our new advances in developing integrated and multiplexed SPR sensors using nanohole arrays. For the first time, we will present our dual-wavelength approaches that remove the need for a spectrometer, thus greatly reducing cost and size. We will also present our recent achievements in (1) in-hole sensing, demonstrating attomolar detection, and (2) flow-through sensing, where the detection time is greatly reduced due to the rapid diffusion inside the nanoholes themselves.

Paper Details

Date Published: 18 May 2009
PDF: 7 pages
Proc. SPIE 7356, Optical Sensors 2009, 73560C (18 May 2009); doi: 10.1117/12.819861
Show Author Affiliations
F. Eftekhari, Univ. of Victoria (Canada)
J. Ferreira, Univ. of Victoria (Canada)
M. L. J. Santos, Univ. of Victoria (Canada)
C. Escobedo, Univ. of Victoria (Canada)
A. G. Brolo, Univ. of Victoria (Canada)
D. Sinton, Univ. of Victoria (Canada)
R. Gordon, Univ. of Victoria (Canada)

Published in SPIE Proceedings Vol. 7356:
Optical Sensors 2009
Francesco Baldini; Jiri Homola; Robert A. Lieberman, Editor(s)

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