Open AccessSurface enhanced Raman scattering in a hollow core microstructured optical fiber
Author(s) -
Felicity Cox,
Alexander Argyros,
M. I. Large,
Srinath Kalluri
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.013675
Subject(s) - raman scattering , rhodamine 6g , materials science , optics , optical fiber , microstructured optical fiber , photonic crystal fiber , raman spectroscopy , core (optical fiber) , fiber , nanoprobe , fiber optic sensor , optoelectronics , graded index fiber , nanoparticle , nanotechnology , physics , fluorescence , composite material
Improvement of surface enhanced resonant Raman scattering (SERRS) signals is demonstrated by confining the scattering event to the core of a hollow core microstructured optical fiber. The analyte solution fills the entire microstructure. The pump light is guided in the liquid core and the Raman scattered signal is efficiently collected by the fiber and transmitted to the detector. Rhodamine 6G (210nM) adsorbed on silver nanoparticles in aqueous solution is used as a demonstration system and it was found that it is possible to collect usable Raman signals from the solution filled optical fiber well beyond the detection limit of an equivalent free-space system.