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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 27, Iss. 5 — May. 1, 2010
  • pp: 977–984

High-sensitivity molecular sensing using hollow-core photonic crystal fiber and surface-enhanced Raman scattering

Xuan Yang, Chao Shi, Damon Wheeler, Rebecca Newhouse, Bin Chen, Jin Z. Zhang, and Claire Gu  »View Author Affiliations

JOSA A, Vol. 27, Issue 5, pp. 977-984 (2010)

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A high-sensitivity molecular sensor using a hollow-core photonic crystal fiber (HCPCF) based on surface-enhanced Raman scattering (SERS) has been experimentally demonstrated and theoretically analyzed. A factor of 100 in sensitivity enhancement is shown in comparison to direct sampling under the same conditions. With a silver nanoparticle colloid as the SERS substrate and Rhodamine 6G as a test molecule, the lowest detectable concentration is 10 10 M with a liquid-core photonic crystal fiber (LCPCF) probe, and 10 8 M for direct sampling. The high sensitivity provided by the LCPCF SERS probe is promising for molecular detection in various sensing applications.

© 2010 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.6450) Spectroscopy : Spectroscopy, Raman
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 4, 2010
Revised Manuscript: February 21, 2010
Manuscript Accepted: March 5, 2010
Published: April 5, 2010

Xuan Yang, Chao Shi, Damon Wheeler, Rebecca Newhouse, Bin Chen, Jin Z. Zhang, and Claire Gu, "High-sensitivity molecular sensing using hollow-core photonic crystal fiber and surface-enhanced Raman scattering," J. Opt. Soc. Am. A 27, 977-984 (2010)

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