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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 3 — Feb. 10, 2014
  • pp: 3028–3038

Fiber optic Fabry-Perot sensor for surface tension analysis

Violeta A. Márquez-Cruz and Juan A. Hernández-Cordero  »View Author Affiliations

Optics Express, Vol. 22, Issue 3, pp. 3028-3038 (2014)

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We demonstrate a new technique for analyzing surface tension of liquids. This is done upon examining the interference signals reflected from a remnant drop pending at the cleaved end of a single mode optical fiber. The resulting interference patterns are fitted to a multimirror Fabry-Perot model yielding information of the drop size. We show that the wetting process of the fiber plays an important role in drop formation; in particular, the drop size can be correlated to the surface tension of the liquid sample. The proposed configuration may render useful for liquids analysis using small sample volume.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(160.4760) Materials : Optical properties
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:

Original Manuscript: November 11, 2013
Revised Manuscript: January 16, 2014
Manuscript Accepted: January 27, 2014
Published: February 3, 2014

Violeta A. Márquez-Cruz and Juan A. Hernández-Cordero, "Fiber optic Fabry-Perot sensor for surface tension analysis," Opt. Express 22, 3028-3038 (2014)

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