Two-layer wideband antireflection coatings with an absorbing layer

A method for designing antireflection coatings by the use of an absorbing layer and a dielectric layer is proposed. Theoretical and experimental results of three two-layer wideband antireflection coatings with Au, Cu, and TiO(x)N(y) are given. The antireflection coatings have low reflectance, good conductivity, and a simple structure. They are especially suitable for display applications.