High Reflection Coatings with Negative and Positive Refractive Indexes

SABAH C., Uckun S.

Progress in Electromagnetics Research Symposium (PIERS 2009 Moscow), Moscow, Russia, 12 - 21 August 2009, pp.357-359, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • City: Moscow
  • Country: Russia
  • Page Numbers: pp.357-359
  • Middle East Technical University Northern Cyprus Campus Affiliated: No

Abstract

In this paper, we intend to create a stratified coatings comprised of negative and positive refractive indexes, NRI and PRI, to achieve high reflection. Generally, quarter wave length longs of high and low refractive index media are applied to the substrate to form NRI-PRI multilayer stacks. By choosing the proper indexes, the various reflected wave fronts can be made to interfere gainfully to generate a well-organized reflector. The coatings and computations are performed and determined using the theory of transfer matrix method. Numerical results of this work show that the coatings are effective for both parallel and perpendicular polarization components, and can be designed for a wide frequency range. In addition, this paper also provides to be able to decrease/increase the frequency range to the desired band and to make size reduction in the layer number.