Open AccessFiber optic Fabry-Perot sensor for surface tension analysis
Author(s) -
Violeta A. Márquez-Cruz,
Juan HernándezCordero
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.003028
Subject(s) - optics , drop (telecommunication) , materials science , surface tension , wetting , optical fiber , fabry–pérot interferometer , fiber optic sensor , interference (communication) , mode volume , sessile drop technique , graded index fiber , physics , laser , telecommunications , composite material , computer science , channel (broadcasting) , quantum mechanics
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.