Behavior of the cutoff frequency in a one-dimensional photonic quasicrystal with an Octonacci sequence

Abstract

In this work, we theoretically calculate the transmittance spectra for a one-dimensional photonic quasicrystal composed of a high-temperature superconductor and a semiconductor. The materials are organized based on the Octonacci sequence; in addition, we consider the dependence of dielectric constants and layer thicknesses on the applied pressure. When the temperature increases, the transmittance spectra shift toward shorter frequencies, coupled with a decrease in the cutoff frequency at different Octonacci sequence values. When the pressure increases, the layer thicknesses of the materials decrease, bringing about a shift toward higher transmittance spectra and cutoff frequencies. We also noticed that an increase in the layer thickness results in the maximization and emergence of new photonic band gaps.