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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 36, Iss. 23 — Dec. 1, 2011
  • pp: 4656–4658

Submicrometer organic silica gel fiber for oxygen sensing

Xinghua Yang, Le Li, Libo Yuan, Shouzhu Li, Shenzi Luo, Yanxin Liu, and Lirong Peng  »View Author Affiliations

Optics Letters, Vol. 36, Issue 23, pp. 4656-4658 (2011)

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We introduce the electrospinning method into fabricating oxygen-sensitive submicrometer scale optical fiber. Uniform tris (4,7-diphenyl-1,10-phenathroline) ruthenium(II) dichloride ( [ Ru ( dpp ) 3 ] 2 + Cl 2 )-doped fibers with a diameter of 900 nm are obtained by electrospinning the organic silicon sol solution derived from tetraethyl orthosilicate and n-Octyltriethoxysilane ( C 14 H 32 O 3 Si ). The experimental results show that the single gel fiber exhibits excellent optical and sensing properties. A laser with a wavelength of 452 nm can be efficiently launched into the fiber and guide along the fiber to excite the fluorescence. Then, we find that [ Ru ( dpp ) 3 ] 2 + –gel fiber has favorable optical and sensing characteristics, and the Stern–Volmer plots are linear in the full concentration range of O 2 ( 0 100 vol . % ). The ratio of I 0 / I 100 , where I 0 and I 100 respectively represent the fluorescence intensities of the fiber exposed to 100% N 2 and 100% O 2 , as the sensitivity of the fiber is 3.5. Simultaneously, the fiber can make a quick response within 100 ms . This method provides an effective and convenient way to fabricate highly uniform nanoscale or microscale optical waveguides for photonic devices.

© 2011 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(160.2290) Materials : Fiber materials

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 6, 2011
Manuscript Accepted: October 24, 2011
Published: November 30, 2011

Xinghua Yang, Le Li, Libo Yuan, Shouzhu Li, Shenzi Luo, Yanxin Liu, and Lirong Peng, "Submicrometer organic silica gel fiber for oxygen sensing," Opt. Lett. 36, 4656-4658 (2011)

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