Radiation properties of a uniaxial chiral quadratic inhomogeneous slab under oblique incidence

详细信息    查看全文

• 作者：Abdul Ghaffar ; Muhammad Arif ; Qaisar Abbas Naqvi ; Majeed A. Alkanhal
• 关键词：Uniaxial chiral ; Caustic ; Co-Polarized ; Cross-polarized ; Maslov's method
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：February, 2014
• 年：2014
• 卷：125
• 期：4
• 页码：1589-1597
• 全文大小：1115 K

文摘

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.