The effect of ZnS thin film’s electrical conductivity on electromagnetic wave propagated through it

Abstract

The effect of electrical conductivity on an electromagnetic wave propagating through ZnS thin film is analyzed using electromagnetic wave equation with relevant boundary condition. The solution of this equation enabled us to obtain a parameter known as the skin depth that relates to the conductivity of the thin film. This was found to give rise to exponential damping for all wavelengths between the optical, UV and Near-infrared region during the propagation. The penetration of the field into the thin film medium was seen to decrease in the analysis. The effect of skin depth on the reflection and transmission coefficient of the propagated waves through the thin film was also analyzed.

Journal of the Nigerian Association of Mathematical Physics, Volume 15 (November, 2009), pp 337 - 344