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Proceedings Paper

Foil-based optical technology platform for optochemical sensors
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 development of a low-cost technology platform for fluorescence-based optochemical sensors. These sensors were constructed by incorporating fluorescent sensing elements in the core of multimode waveguides or lightguides, and have applications in medical, biochemical and environmental diagnostics. Flexible lightguides were fabricated either with silsesquioxane-based or PDMS-type optical polymers using photolithography or soft-lithography based replication techniques respectively. Spectral transmission characteristics were measured along with loss values obtained by cut-back measurements for several wavelengths from visible to mid-IR. Propagation losses as low as 0.14dB/cm were measured for 50 x 50 μm2 waveguides. For coupling light in and out of the waveguides, different types of coupling structures, e.g. 45° micromirror plugs were investigated.

Paper Details

Date Published: 1 February 2012
PDF: 9 pages
Proc. SPIE 8264, Integrated Optics: Devices, Materials, and Technologies XVI, 82640R (1 February 2012); doi: 10.1117/12.908182
Show Author Affiliations
Sandeep Kalathimekkad, Univ. Gent (Belgium)
Jeroen Missinne, Univ. Gent (Belgium)
Juan Diego Arias Espinoza, Holst Ctr. (Netherlands)
Bram Van Hoe, Univ. Gent (Belgium)
Erwin Bosman, Univ. Gent (Belgium)
Edsger Smits, Holst Ctr. (Netherlands)
Rajesh Mandamparambil, Holst Ctr. (Netherlands)
Geert Van Steenberge, Univ. Gent (Belgium)
Jan Vanfleteren, Univ. Gent (Belgium)

Published in SPIE Proceedings Vol. 8264:
Integrated Optics: Devices, Materials, and Technologies XVI
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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