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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 16478–16483

Fluorescence pH probe based on microstructured polymer optical fiber

X. H. Yang and L. L. Wang  »View Author Affiliations

Optics Express, Vol. 15, Issue 25, pp. 16478-16483 (2007)

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A kind of optical pH sensor was demonstrated that is based on a pH-sensitive fluorescence dye-doped (eosin) cellulose acetate (CA) thin-film modified microstructured polymer optical fiber (MPOF). It was obtained by directly inhaling an eosin-CA-acetic acid mixed solution into array holes in a MPOF and then removing the solvent (acetic acid). The sensing film showed different fluorescence intensities to different pH solutions in a pH range of 2.5–4.5. Furthermore, the pH response range could be tailored through doping a surfactant, hexadecyl trimethyl ammonium bromide (CTAB), in the sensing film.

© 2007 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.2530) Spectroscopy : Fluorescence, laser-induced
(280.1415) Remote sensing and sensors : Biological sensing and sensors
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 26, 2007
Revised Manuscript: November 8, 2007
Manuscript Accepted: November 8, 2007
Published: November 28, 2007

Virtual Issues
Vol. 3, Iss. 1 Virtual Journal for Biomedical Optics

X. H. Yang and L. L Wang, "Fluorescence pH probe based on microstructured polymer optical fiber," Opt. Express 15, 16478-16483 (2007)

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