Simulation of a Symmetry Metamaterial Waveguide Absorber(TE&TM)

This communication presents a simulation of metamaterials absorber in lossy waveguide structure for solar cell applications. Both transverse electric (TE)and transverse magnetic (TM) waves propagating in a three layered waveguide structure containing metamaterials as thin film have been studied in infrared and visible regions. The odd symmetry solutions of the Eigen value equation describing lossy –guided modes with complex –valued propagation constants have been computed. They exhibit very strong longitudinal attenuation which increases with the increasing of the mode's number and increases with the decreasing of the film thickness. The longitudinal attenuations are also computed and illustrated versus the wavelength of the incident waves in the visible regions for both TE and TM waves. LHM is better absorber of higher TE modes than that of higher TM modes and the best absorption is attained at shorter wavelengths in the visible region. Moreover, the normalized electric profile of TE waves and normalized magnetic profile of TM waves shows more stronger electric field and magnetic field respectively. More light absorption of the trapped modes in LHM slab are also observed than that in right handed material(RHM) or metal medium which is appropriate potentially for solar-cell application.