Properties of band gap for p-polarized wave propagating in a binary superconductor-dielectric photonic crystal

A photonic crystal (PC) having the structure (AB)NA is investigated. A and B are superconductor and dielectric layers, respectively. P-polarized (TM) wave is assumed to be incident on the PC. The transmission of TM waves through the PC is studied with a focus on photonic band gap (PBG). The change in the PBG is studied with the variation of different parameters of the superconducting layer such as temperature, critical temperature, thickness and London penetration length. The angle of incidence dependence of the PBG is also investigated. The PBG band width at half maximum (BWHM) decreases with increasing the incidence angle until Brewster angle is reached where the band gap vanishes. The BWHM has shown the lowest dependence on temperature and critical temperature among the parameters of the superconducting layer. London penetration length has the greatest effect on the BWHM among the parameters of the superconductor layer.

Automated summary

The study focuses on investigating the impact of various parameters of the superconducting layer on the photonic band gap (PBG). It was found that the PBG band width at half maximum decreases as the angle of incidence increases, until reaching the Brewster angle where the band gap vanishes. Among the parameters studied, the London penetration length has the greatest effect on the band width at half maximum.