The objective concerning this work is to design well anisotropic 2D photonic crystals (PhCs) with forthcoming-zero refractive indications (NZRIs). We demonstrate that PhCs, calm of dielectric rods and organized in elongated and rounded lattices can support unidirectional wave propagation with NZRIs ahead short sides of whole cells. Divergent waves that are occurrence are collimated as a result of complete abolition of wave propagation along the four-sided direction. We secondhand MPB and COMSOL software bundle for simulating the dispersion drawings, S21 transmission spectra, and wave patterns. The results show that the noticed collimation effect is correlated accompanying flat equi-frequency contours (EFCs) of PhCs, while operating repetitiveness corresponds to the lower edge of the 2nd broadcast band of the crystal. We have recorded wave patterns further PhC fragment designed for movement in the microwave range as exploratory confirmation of the computational results. Fabricated samples were irradiated by differing TM polarized electromagnetic waves and were made up of porcelain dielectric rods with mm-diameter diameters. Obtained results extend outlooks of low-deficit artificial anisotropic media accompanying NZRI properties for cook and photonic applications. Collimators can have many potential uses in electromagnetics and photonics, such as embellishing the gain and directionality of antennas’ radiation patterns and connecting waveguides accompanying different widths.
Author(s) Details:
Saeid Jamilan,
Department
of Electrical and Computer Engineering, Michigan Technological University,
Houghton, MI, 49931, USA.
Muhammad
Danyal,
Department
of Electrical and Computer Engineering, Michigan Technological University,
Houghton, MI, 49931, USA.
Elena Semouchkina,
Department of Electrical and Computer Engineering, Michigan
Technological University, Houghton, MI, 49931, USA.
Please see the link here: https://stm.bookpi.org/FRAPS-V9/article/view/11762
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