Reflectance, Transmission and Absorption Spectra of Te/PS Multilayer Structure with Defect of Metamaterial at Terahertz Region

The interaction of wave with matter defines the optical properties of periodic of one-dimensional periodic structure (1DPS) of the materials. The optical properties like reflectance, transmittance and absorption spectra of one dimensional(1D) tellurium and polystyrene based symmetric and asymmetric periodic structure theoretically analysed with defect of meta-material using the transfer matrix method (TMM). Reflectance, transmittance and absorption spectra are analysed for symmetric structure found an enormous band gap which works as a broadband reflector and asymmetric structure shows the separated huge band gap in two parts. The defect of meta-material inserted in the tellurium and polystyrene based periodic structures are analysed the broadband reflector, multichannel filter and sensor applications at terahertz region.