Surface Electromagnetic Waves Propagation Guided by Dissipative Dielectric Material Sandwich Between Two Periodic Multilayered Isotropic Materials in Prism Coupled Configuration

摘要

Canonical boundary-value problem was considered to scrutinize the Tamm wave propagation, having Uller-Zenneck wave characteristic, guided by dissipative dielectric material sandwich between two semi-infinite periodic multilayered isotropic dielectric (PMLID) non-dissipative materials. The characteristic equation was obtained and solved numerically for both s and p-polarization states as function of dissipative dielectric slab's thickness. The solutions represent Tamm waves and waveguide modes. It was found that there exist no s-polarized Tamm wave and all the solutions represented waveguide modes. However, multiple p-polarized Tamm waves were obtained which propagate with different phase speeds, different degree of localizations, and different time-average power density profiles along the dissipative dielectric slab. For large thickness of dissipative dielectric material the solutions of characteristic equation were either Tamm wave or waveguide mode or both. The solution found for zero thickness of dissipative dielectric material represent pure Tamm wave that has non-Uller-Zenneck wave characteristic. The prism coupled excitation of p-polarized Tamm wave was also examined. The absorption peaks represent either Tamm wave or waveguide mode. The excitation of Tamm wave with Uller-Zenneck wave characteristic at the dissipative dielectric slab sandwiched between PMLID non-dissipative would highly appreciate in the application of surface electromagnetic waves (SEWs).