Superstrate Refractive Index Research Articles

Thin-metal-clad waveguide polarizers: analysis and comparison with experiment

We present an analysis of a thin-metal-film in-line fiber polarizer and compare the results with experimentally observed TE- and TM-mode losses. It is shown that the analysis predicts reasonably well the experimentally observed behavior. The present analysis can be used as a design aid for obtaining initial design parameters such as buffer thickness, type of metal, metal thickness, and superstrate refractive index for such polarizer structures.

Analytical investigations of leaky and absorbing planar structures

Analytical expressions for the loss coefficient and the perturbed propagation constant are presented for planar leaky structures which may have media of complex refractive indices. Numerical calculations are reported for the loss variation with parameters such as the buffer refractive index, buffer thickness and superstrate refractive index.