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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 4 — Feb. 1, 2009
  • pp: B183–B189

Evanescent field sensors and the implementation of waveguiding nanostructures

Sandra Börner, Rozalia Orghici, Siegfried R. Waldvogel, Ulrike Willer, and Wolfgang Schade  »View Author Affiliations

Applied Optics, Vol. 48, Issue 4, pp. B183-B189 (2009)

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Conventional fiber optic evanescent-field gas sensors are based on a high number of total reflections while the gas is passing the active bare core fiber and of course a suitable laser light source. The use of miniaturized laser sources for sensitive detection of CO 2 in gaseous and water-dissolved phase for environmental monitoring are studied for signal enhancing purposes. Additionally, the fiber optic sensor, consisting of a coiled bare multimode fiber core, was sensitized by an active polymer coating for the detection of explosive TNT. The implementation of ZnO waveguiding nanowires is discussed for surface and sensitivity enhancing coating of waveguiding elements, considering computational and experimental results.

© 2009 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(350.4238) Other areas of optics : Nanophotonics and photonic crystals

Original Manuscript: July 22, 2008
Revised Manuscript: December 28, 2008
Manuscript Accepted: January 2, 2009
Published: January 16, 2009

Sandra Börner, Rozalia Orghici, Siegfried R. Waldvogel, Ulrike Willer, and Wolfgang Schade, "Evanescent field sensors and the implementation of waveguiding nanostructures," Appl. Opt. 48, B183-B189 (2009)

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