Chapter 2. Model dielectric functions

  1. Bo E. Sernelius Professor

Published Online: 28 JAN 2005

DOI: 10.1002/3527603166.ch2

Surface Modes in Physics

Surface Modes in Physics

How to Cite

Sernelius, B. E. (2001) Model dielectric functions, in Surface Modes in Physics, Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527603166.ch2

Author Information

  1. Department of Physics and Measurement Technology, Linköping University, Linköping, Sweden,∼boser/

Publication History

  1. Published Online: 28 JAN 2005
  2. Published Print: 29 MAY 2001

ISBN Information

Print ISBN: 9783527403134

Online ISBN: 9783527603169



  • surface modes;
  • dielectric functions;
  • Lorentz'classical model;
  • insulators;
  • Drude's classical model;
  • metals;
  • dilute gas of permanent dipoles;
  • Debye rotational relaxation;
  • dielectric properties of water;
  • superluminal speeds


  • Lorentz' classical model for the dielectric function of insulators

  • Drude's classical model for the dielectric function of metals

  • Modelling

  • Dielectric function of a plasma

  • Static dielectric function for a dilute gas of permanent dipoles

  • Debye rotational relaxation

  • Dielectric properties of water

  • Superluminal speeds

    • Speed of light in vacuum

    • Einstein's special theory of relativity

    • Tachyons

    • Trivial examples

    • EPR paradox

    • Phase velocity versus group velocity

    • Surpassing the sonic speed barrier

    • Faster than the speed of light in a medium

    • Superluminal speeds caused by changes in the vacuum

    • Tunneling

    • What do we mean by signals, information and message?

    • Conclusions