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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/011/02/0135-0144

    • Keywords

       

      Hydrodynamical model; diffused surface; surface plasmons

    • Abstract

       

      Using the hydrodynamical model, we have obtained the surface plasmon dispersion relation for spherical metallic particles in the following two cases: (1) a sharp surface cut off in electron density and (2) a diffused electron density at the surface. The diffused density is modelled with a step function. The diffuse nature of the electron density at surface of the metal particle is necessary to understand the experimental result for particles with small radii. Shift in the absorption frequency is estimated and found to be small.

    • Author Affiliations

       

      Satish B Ogale1 V N Bhoraskar1 P V Panat1

      1. Department of Physics, University of Poona, Pune - 411 007
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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