Porphyrin-doped solgel-lined structured optical fibers for local and remote sensing
- Publication Type:
- Journal Article
- Citation:
- Optics Letters, 2011, 36 (11), pp. 1975 - 1977
- Issue Date:
- 2011-06-01
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Porphyrin-doped solgel-lined structured optical fibers for local and remote sensing.pdf | Published Version | 409.49 kB |
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We constructed a type of sensor by depositing a solgel layer within the interior holes of a silica-structured fiber and, subsequently, coating this with an acid-responsive porphyrin. Protonation of the porphyrin by an acidic gas (HCl in this case), is detected by a large change in the visible spectrum. Compared to previous work on a liquid-core sensor in a structured optical fiber, the signal-to-noise ratio of this gas sensor shows a reduced signal strength, but the detection rate is increased about fortyfold. © 2011 Optical Society of America.
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