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Radiation properties of a uniaxial chiral quadratic inhomogeneous slab under oblique incidence
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| Organization: | University of Agriculture, Faisalabad, Pakistan |
| Department: | Department of Physics |
| Organization: | Quaid-i-Azam University, Islamabad, Pakistan |
| Department: | Department of Electronics |
| Organization: | King Saud University, Saudi Arabia |
| Department: | Department of Electrical Engineering |
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In this paper, the focussing of the transmitted electromagnetic field through a quadric inhomogeneous slab of lossless uniaxial chiral medium is derived using transmission coefficient under oblique incidence. The inhomogeneity in the uniaxial chiral slab has been incorporated through permittivity parameter. Asymptotic ray theory provides valid field everywhere except at focal point where it gives infinite value. Singularity of the field at focal point is addressed using Maslov’s method. The derived analytical field expressions at caustic or focal point of uniaxial quadratic inhomogeneous slab have been solved numerically using MATHEMATICA. The effects of chirality parameter, axial permittivity, transvers permittivity, angle of incidence on the refracted field are discussed and the effects of Brewster angle on the focussed field are also discussed. The results obtained using Maslov’s method are compared with Huygens–Kirchhoff’s integral which are in good agreement.
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Uniaxial chiral, Caustic, Co-Polarized, Cross-polarized, Maslov’s method
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