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Proceedings Paper

Surface Enhanced Raman Spectroscopy (SERS) optical fibers for remote sensing
Author(s): Aditya H. Pandya; J. Carl Kumaradas; Alexandre Douplik
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Paper Abstract

In this study, we present facile fabrication of a miniaturized remote sensing SERS platform using highly tunable Nano- Sphere Lithography (NSL) technique. Self-assembly at the air-water interface was performed and the monolayer of polystyrene spheres was transferred onto the tip of optical fibers. Various optical fibers with different numerical apertures (NAs) were used to find an optimal remote sensing setup. Using 200μm diameter optical fibers with high numerical aperture (0.5NA), the SERS enhancement of remote sensing was found to be 98% of direct sensing configuration. Standard silica optical fibers were used for remote sensing using SERS without additional need of optical filtering to mitigate fluorescence and Raman background of these fibers which allows fabrication of miniaturized remote sensing platforms that can be used for remote biochemical sensing.

Paper Details

Date Published: 22 July 2019
PDF: 4 pages
Proc. SPIE 11075, Novel Biophotonics Techniques and Applications V, 1107506 (22 July 2019); doi: 10.1117/12.2527175
Show Author Affiliations
Aditya H. Pandya, Ryerson Univ. (Canada)
J. Carl Kumaradas, Ryerson Univ. (Canada)
Alexandre Douplik, Ryerson Univ. (Canada)
Institute for Biomedical Engineering, Science and Technology (Canada)
Keenan Research Ctr. for Biomedical Science (Canada)

Published in SPIE Proceedings Vol. 11075:
Novel Biophotonics Techniques and Applications V
Arjen Amelink; Seemantini K. Nadkarni, Editor(s)

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