In this paper we report the fabrication of microstructured optical fibers (MOFs) metallic metamaterials using a bottom-up
processing technique for surface enhanced Raman scattering (SERS) applications. The inner walls of the silica-based
holey optical fiber have been modified by depositing granular films of Ag nanoparticles from its organometallic
precursor at high pressure condition. The resulting fibers demonstrate strong SERS effect when analyte molecules are
infiltrated within the MOF due to large electromagnetic field enhancement and long interaction length. The chemically
modified MOFs with 3D patterning represent an exciting platform technology for next generation SERS sensors and
plasmonic in-fiber integrated devices.
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