Transmission and Reflection Spectra of Photonic Crystal with Plasmonic Defect Layer
When used as inclusions in dielectric matrix, metal nanoparticles allow obtaining composite materials with optical properties vastly different from that usually found in natural materials. Absorptive and dispersion properties of such media are determined by the frequencies of the plasmon resonances, which depend on the shape of impurity metallic nanoparticles. Therefore the composite material with uniformly oriented elongated nanoparticles behaves like a dichroic crystal. Vetrov et al. investigated the relationship between the structural parameters of a plasmonic nanocomposite and the spectral properties of the photonic crystal structures. In this work the possibility of using plasmonic nanocomposite with nonspherical inclusions as a tuning defect in a photonic crystal (PC) is considered and the features of the behavior of electromagnetic eigenmodes in an artificial layered periodic structure with a finite number of periods a nd a plasmonic defect are analyzed.