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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 6 — May. 26, 2009

Forward-propagating surface-enhanced Raman scattering and intensity distribution in photonic crystal fiber with immobilized Ag nanoparticles

Maung KyawKhaing Oo, Yun Han, Rainer Martini, Svetlana Sukhishvili, and Henry Du  »View Author Affiliations


Optics Letters, Vol. 34, Issue 7, pp. 968-970 (2009)
http://dx.doi.org/10.1364/OL.34.000968


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Abstract

A 30 cm long solid-core photonic crystal fiber (PCF) with immobilized and discrete Ag nanoparticles was used to obtain forward-propagating surface-enhanced Raman scattering (SERS) of 2 μ M Rhodamine 6G (R6G) aqueous solution filled in the cladding air channels. The intensity distributions of characteristic Raman vibrational bands of silica and R6G in PCF were mapped for the first time to our knowledge by hyperspectral Raman imaging. We show that the measured SERS intensity arises exclusively from the forward-propagating core mode as a result of evanescent-field interaction with R6G in the innermost ring of the cladding air channels.

© 2009 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(300.6450) Spectroscopy : Spectroscopy, Raman
(290.2558) Scattering : Forward scattering
(160.4236) Materials : Nanomaterials
(060.5295) Fiber optics and optical communications : Photonic crystal fibers
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Scattering

History
Original Manuscript: November 25, 2008
Revised Manuscript: February 11, 2009
Manuscript Accepted: February 13, 2009
Published: March 19, 2009

Virtual Issues
Vol. 4, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Maung Kyaw Khaing Oo, Yun Han, Rainer Martini, Svetlana Sukhishvili, and Henry Du, "Forward-propagating surface-enhanced Raman scattering and intensity distribution in photonic crystal fiber with immobilized Ag nanoparticles," Opt. Lett. 34, 968-970 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-34-7-968

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