Publications [#269810] of David R. Smith

Papers Published
  1. Kottmann, JP; Martin, OJF; Smith, DR; Schultz, S, Non-regularly shaped plasmon resonant nanoparticle as localized light source for near-field microscopy, Journal of Microscopy, vol. 202 no. 1 (2001), pp. 60-65 [doi] .

    We study numerically two-dimensional nanoparticles with a non-regular shape and demonstrate that these particles can support many more plasmon resonances than a particle with a regular shape (e.g. an ellipse). The electric field distributions associated with these different resonances are investigated in detail in the context of near-field microscopy. Depending on the particle shape, extremely strong and localized near-fields, with intensity larger than l05 that of the illumination wave, can be generated. We also discuss the spectral dependence of these near-fields and show that different spatial distributions are observed, depending which plasmon resonance is excited in the particle.