Harnessing plasmon-induced ionic noise in metallic nanopores.

  title={Harnessing plasmon-induced ionic noise in metallic nanopores.},
  author={Yi Li and Chang Chih Chen and Sarp Kerman and Pieter Neutens and Liesbet Lagae and Guido Groeseneken and Tim Stakenborg and Pol van Dorpe},
  journal={Nano letters},
  volume={13 4},
The ionic properties of a metal-coated silicon nanopore were examined in a nanofluidic system. We observed a strong increase of the ionic noise upon laser light illumination. The effect appeared to be strongly mediated by the resonant excitation of surface plasmons in the nanopore as was demonstrated by means of ionic mapping of the plasmonic electromagnetic field. Evidence from both simulations and experiments ruled out plasmonic heating as the main source of the noise, and point toward… CONTINUE READING
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