Gold Bulletin

, Volume 10, Issue 1, pp 10–14

The colour of gold and its alloys

The mechanism of variation in optical properties

Authors

  • K. E. Saeger
    • DODUCO K.G.
  • J. Rodies
    • Friedrich Uhde GmbH

DOI: 10.1007/BF03216519

Abstract

The optical properties of metals, and particularly their high reflectivity, are related to the effect on their free electrons of the energy of the incident light, but a satisfactory explanation of the characteristic colours of gold and its alloys and intermetallic phases has become possible only since calculations could be made of energy band structures.

Copyright information

© World Gold Council 1977