Going further

- Source for the first part of the derivation for the relationship between the dielectric constant and the refractive index.

*Dielectrics*, P. J. Harrop, 1972 (Butterworths)

Contains a more mathematical treatment of dielectrics, as well as information on many other potential applications.*The Solid State*, Second Edition, H. M. Rosenberg, 1978 (OUP)

Chapter 13, “Dielectric properties”, provides a good overview of many of the subjects discussed here and contains the latter part of the derivation for the relationship between the dielectric constant and the refractive index.*Electronic and Magnetic Behaviour of Materials*, A. Nussbaum, 1967 (Prentice-Hall) pp.70-77

Provides a more detailed look at how the properties of dielectrics arise from their microscopic polarisation.