Excitation of nonradiative surface plasma waves in silver by the method of frustrated total reflection

  title={Excitation of nonradiative surface plasma waves in silver by the method of frustrated total reflection},
  author={Andreas Otto},
  journal={Zeitschrift f{\"u}r Physik A Hadrons and nuclei},
  • A. Otto
  • Published 1 August 1968
  • Physics
  • Zeitschrift für Physik A Hadrons and nuclei
A new method of exciting nonradiative surface plasma waves (SPW) on smooth surfaces, causing also a new phenomena in total reflexion, is described. Since the phase velocity of the SPW at a metal-vacuum surface is smaller than the velocity of light in vacuum, these waves cannot be excited by light striking the surface, provided that this is perfectly smooth.However, if a prism is brought near to the metal vacuum-interface, the SPW can be excited optically by the evanescent wave present in total… 
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