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Interference Coatings

  • P. W. Oliveira
  • M. Mennig
  • M. A. Aegerter
  • H. Schmidt

Abstract

Electromagnetic (EM) radiation impinging on a substrate is redistributed according to the radiation distribution equation T + R + A = 1, where T, R and A are the transmittance, reflectance, and absorbance of the matter respectively. Reflectance is a fundamental phenomenon which occurs when the EM waves propagates across a boundary between two media that have different refractive indices. If sometimes it is a disturbing effect which must be avoided, its control over defined ranges of the electromagnetic spectrum permits to obtain a vast variety of optical filtering properties. One of the most effective ways to control the reflectance of a substrate is to deposit very thin low-loss dielectric films having typical thickness of λ/4 and λ/2, known as interference coatings. By suitable variations in the design and the choice of the materials, properties such as antireflection, high reflection, neutral beam splitting, short and long wave pass, dichroic, monochromatic and notch filtering can be achieved.

Keywords

Glass Pane Shop Window Interference Coating Quarter Wave Layer Taber Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2004

Authors and Affiliations

  • P. W. Oliveira
  • M. Mennig
  • M. A. Aegerter
  • H. Schmidt

There are no affiliations available

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