Surface plasmon modes of a single silver nanorod: an electron energy loss study.

  title={Surface plasmon modes of a single silver nanorod: an electron energy loss study.},
  author={Olivia Nicoletti and Martijn Wubs and Niels Asger Mortensen and Wilfried Sigle and Peter A. van Aken and Paul A. Midgley},
  journal={Optics express},
  volume={19 16},
We present an electron energy loss study using energy filtered TEM of spatially resolved surface plasmon excitations on a silver nanorod of aspect ratio 14.2 resting on a 30 nm thick silicon nitride membrane. Our results show that the excitation is quantized as resonant modes whose intensity maxima vary along the nanorod's length and whose wavelength becomes compressed towards the ends of the nanorod. Theoretical calculations modelling the surface plasmon response of the silver nanorod-silicon… CONTINUE READING
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