One-dimensional metamaterial photonic crystals comprising gyroidal and hyperbolic layers as an angle-insensitive reflector for energy applications in IR regions
Electrical Engineering Department, College of Engineering, Najran University, Najran, Kingdom of Saudi Arabia
2 Physics Department, Faculty of Science, Beni-Suef University, 62512, Beni-Suef, Egypt
3 Information Systems Department, College of Computer Sciences and Information Systems, Najran University, Najran, Kingdom of Saudi Arabia
Accepted: 10 May 2023
Published online: 1 June 2023
In this study, we have theoretically introduced the reflectance spectrum of the one-dimensional metamaterial photonic crystals (PCs) based on the effective medium theory (EMT) and the well-defined transfer matrix formulism. The candidate structure is composed of two metamaterials, including hyperbolic (CD) and gyroidal (G) metamaterials, such as [G (CD)m]s. In this regard, the gyroidal metamaterial is designed from Silver (Ag) of a gyroidal configuration in a dielectric host material (TiO2). Then, the hyperbolic metamaterial appears as a composite design of Indium Arsenide (InAs) and Ag for m periods. The numerical findings showed the emergence of an angle-insensitive photonic bandgap, extending from 2.5 μm to 4 μm. Meanwhile, we have considered the impact of the filling fraction, periodicity number (m and S), and thicknesses on the reflectivity of the proposed reflector. We believe that this structure could be promising as an angle-insensitive reflector for various solar energy applications, such as reflectors, wavelength-selective absorbers, smart widows, and an intermediate layer for solar cells.
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