Scattering Characteristics of Stratified Chiral Slab (Special Issue on the 1992 Symposium on Electromagnetic Theory)

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概要

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• Scattering characteristics of a stratified chiral slab, which is composed of dielectric chiral layers of different material properties and thicknesses, are extensively explored. Design considerations for optical filters are also presented for both the cases of normal and oblique incidence. In the analysis, the incident field is assumed to be a plane monochromatic wave of any arbitrary polarization. The transmitted and reflected electric fields are obtained by noting the fact that the electric field inside a chiral medium is expressed as a sum of the left-and right-circularly polarized plane waves of different phase velocities. Then one can describe the power densities and the Stokes parameters of the transmitted and reflected waves in terms of their field components. As is well known, the Stokes parameters characterize every possible state of polarization of a plane wave. Numerical examples are presented to show the effects of chirality on polarization conversion properties of the stratified chiral slab. The cross- and co-polarized powers and the Stokes parameters of the transmitted and reflected waves are computed for the incident wave of perpendicular polarization. The numerical results demonstrate novel depolarization properties of the slab with application to the design of efficient filters active at the optical region. It is seen from the results that the stratified chiral slab acts as a polarization-conversion transmission filter that passes only a cross-polarized component of the transmitted wave at some frequency band. Furthermore, the slab may be utilized as an antireflection filter for both the cross- and co-polarized components of the reflected wave at the band region.

• 一般社団法人電子情報通信学会の論文
• 1993-10-25

著者

• Kusunoki Atsushi

  Faculty Of Engineering Oita University

• Tanaka Mitsuru

  Faculty Of Agriculture Graduate School Kyushu University

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• Scattering Characteristics of Stratified Chiral Slab (Special Issue on the 1992 Symposium on Electromagnetic Theory)

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