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Proceedings Paper

Optical fibers as a unique platform for RS/SERS molecular detection
Author(s): Xuan Yang; Tiziana C. Bond; Claire Gu
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Paper Abstract

There is a growing interest in developing compact and reliable sensors for molecular detection. Raman spectroscopy (RS) has the advantage of molecular specificity compared to other sensing techniques but lacks the required sensitivity. The development of surface enhanced Raman scattering (SERS) technologies has provided a solution to the sensitivity problem. In addition, the application of optical fibers, in conjunction with RS and SERS, has proved to be a unique platform for remote sensing, system integration, and further sensitivity enhancement. In this paper, we review our recent work on two types of optical fiber sensors for enhanced Raman gas detections. One is the hollow-core photonic crystal fiber (HCPCF) sensor utilizing the increased interaction volume by the light confinement inside the HCPCF. The other is the nanostructured optical fiber sensor, in which a multimode fiber facet is patterned with an array of metal-coated nanopillars, leading to surface-enhanced Raman scattering (SERS) that significantly increases the sensitivity. We demonstrate that these techniques can be well applied in the in-situ remote detection of organic vapors and explosives.

Paper Details

Date Published: 20 December 2013
PDF: 13 pages
Proc. SPIE 9044, 2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 904402 (20 December 2013); doi: 10.1117/12.2035913
Show Author Affiliations
Xuan Yang, Univ. of California, Santa Cruz (United States)
Lawrence Livermore National Lab. (United States)
Tiziana C. Bond, Lawrence Livermore National Lab. (United States)
Claire Gu, Univ. of California, Santa Cruz (United States)


Published in SPIE Proceedings Vol. 9044:
2013 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Brian Culshaw; Xuping Zhang; Anbo Wang, Editor(s)

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