Surface‐Enhanced Raman Scattering Using Microstructured Optical Fiber Substrates |
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| Authors: | A. Amezcua‐Correa J. Yang C. E. Finlayson A. C. Peacock J. R. Hayes P. J. A. Sazio J. J. Baumberg S. M. Howdle |
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| Affiliation: | 1. Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (UK);2. School of Chemistry, University of Nottingham, Nottingham NG7 2RD (UK);3. School of Physics & Astronomy, University of Southampton, Southampton SO17 1BJ (UK) |
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| Abstract: | Microstructured optical fibers (MOFs) represent a promising platform technology for fully integrated next generation surface enhanced Raman scattering (SERS) sensors and plasmonic devices. In this paper we demonstrate silver nanoparticle substrates for SERS detection within MOF templates with exceptional temporal and mechanical stability, using organometallic precursors and a high‐pressure chemical deposition technique. These 3D substrates offer significant benefits over conventional planar detection geometries, with the long electromagnetic interaction lengths of the optical guided fiber modes exciting multiple plasmon resonances along the fiber. The large Raman response detected when analyte molecules are infiltrated within the structures can be directly related to the deposition profile of the nanoparticles within the MOFs via electrical characterization. |
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| Keywords: | Composite materials Fibers Microstructures Nanoparticles Surface‐enhanced Raman spectroscopy |
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