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Proceedings Paper

Fluorescence-based optochemical sensor on flexible foils
Author(s): Sandeep Kalathimekkad; Jeroen Missinne; Juan Diego Arias Espinoza; Bram Van Hoe; Erwin Bosman; Edsger Smits; Rajesh Mandamparambil; Geert Van Steenberge; Jan Vanfleteren
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Paper Abstract

This paper describes the implementation of a low-cost technology platform for fluorescence-based optochemical sensors made up of arrays of multimode waveguides and coupling structures integrated onto a flexible substrate. Such a configuration is ideal for multi-analyte detection owing to a possibility of future integration of different dyes in each waveguides. The presence of light sources, fluorescent sensing elements and photodetectors in a foil platform makes it a compact optochemical sensor, which has wide-range of applications in medical, biochemical, and environmental diagnostics. Flexible lightguides fabricated using soft-lithography based replication techniques, are used in combination with 45° micromirror coupling structures, having a loss of 0.5dB. Fluorescent dyes are incorporated with the lightguides enabling a detection of shift in fluorescence-peaks in contact with gases, which are read-out at the detection. Initial measurements yielded promising results of the waveguides mixed with fluorescent dyes showing response to toluene.

Paper Details

Date Published: 9 May 2012
PDF: 9 pages
Proc. SPIE 8439, Optical Sensing and Detection II, 84390Y (9 May 2012); doi: 10.1117/12.922663
Show Author Affiliations
Sandeep Kalathimekkad, Ghent Univ. (Belgium)
IMEC (Belgium)
Jeroen Missinne, Ghent Univ. (Belgium)
IMEC (Belgium)
Juan Diego Arias Espinoza, Holst Ctr. (Netherlands)
Bram Van Hoe, Ghent Univ. (Belgium)
IMEC (Belgium)
Erwin Bosman, Ghent Univ. (Belgium)
IMEC (Belgium)
Edsger Smits, Holst Ctr. (Netherlands)
Rajesh Mandamparambil, Holst Ctr. (Netherlands)
Eindhoven Univ. of Technology (Netherlands)
Geert Van Steenberge, Ghent Univ. (Belgium)
IMEC (Belgium)
Jan Vanfleteren, Ghent Univ. (Belgium)
IMEC (Belgium)


Published in SPIE Proceedings Vol. 8439:
Optical Sensing and Detection II
Francis Berghmans; Anna Grazia Mignani; Piet De Moor, Editor(s)

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