Abstract
Silver nanowires (AgNWs) serve as plasmonic waveguides for propagating surface plasmon polaritons (SPPs), allowing the spatial confinement and transfer light energy over micrometer distance through the structures below sub-diffraction limited diameter. In addition to this, surface plasmon allows us to concentrate light energy in nanometer regions, such as at the nanowire end, leading to a massive enhancement of electromagnetic filed that can be used for surface enhanced Raman scattering (SERS) or fluorescence (SEF) spectroscopy/microscopy.
© 2022 Japan Society of Applied Physics, Optica Publishing Group
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