الفهرس 
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Abstract
To sum up our work:
First, we have demonstrated the transmittance spectra of a one-dimensional dielectric-semiconductor metamaterial photonic crystal design within THz range. The results show the appearance of the cutoff frequency feature within THz range. Cutoff frequency means the electromagnetic wave is only allowed to propagate through the structure when its frequency is higher than the cutoff frequency value. Also, we found that the cutoff frequency is strongly dependent on the thicknesses of the constituent’s layers.
The cutoff frequency decreases as the dielectric layer thickness increases and it increases with increasing the filling factor of the semiconductor metamaterial. In addition, we found that the cutoff frequency is independent of the number of periods. These results can be crucial for developing potential applications based on the one-dimensional dielectric semiconductor metamaterial PCs at THz region like reflectors and band pass filters
Then, we investigated the optical properties of a superconductor-semiconductor metamaterial photonic crystal NIR range. The resulted reflectance spectra shows the appearance of number of reflection dips in this range.
These reflection dips effectively behave like the localized passbands, which provide a feasible way of designing a multiresonance multilayer FPR without physically inserting any defect layer to break the periodicity of the structure. Also, we found that the number of reflection dips are strongly dependent on several parameters of the proposed design such as the thicknesses of the constituent’s layers, the operating temperature of the high temperature superconductor material, and the angle of incidence.
We found that the number of reflection dips decrease as the superconductor layer thickness increases whilst it increases as the semiconductor metamaterial layer thickness increases. In the case of increasing the operating temperature, we found that the number of dips increase as well. In addition, as the angle of incidence increases, the number of reflection dips decrease. These results can be used as a narrow band filter NIR range.
Finally, we have demonstrated an approach for designing SCFs based on plasmonic metasurfaces by using an optimization process in a very straightforward manner at arbitrary wavelength bands. Our results show that high absorption peaks (reflection dips) caused by the localized surface plasmon resonance, can be obtained at visible range which corresponds to high saturation and brightness of the produced colors.
In addition, we showed that the demonstrated approach can easily be applied to different shapes of plasmonic nanoantennas such as nanodisks, elliptical, and rectangular nanoantennas. We also showed that by controlling the geometry of the plasmonic nanoantennas, the absorption peaks can be made tunable over the visible spectrum which enables designing SCFs in a
simple fitting model.
The approach facilitates the design of SCFs that can be used in practical applications such as color printing, high-resolution chromatic displays, multi-spectral imaging, and sensing applications.