Abstract
The geometrical optics approximation (GOA) method is extended to the forward light scattering of a large-sized isotropic chiral medium (ICM) spherical particle illuminated by a polarized plane wave. Based on the boundary conditions, the reflection and refraction Fresnel coefficients at the surface of a chiral sphere are revisited. Expressions of the scattering fields are derived by a combination of the amplitudes of the externally reflected, the directly refracted, and the diffracted waves, where effects of polarization and the phase shift are taken into consideration. Numerical results of co-polarized and cross-polarized scattering intensity distributions of a large-sized ICM sphere are presented. Effects of the chiral parameter, permittivity, and size parameter of the sphere on the scattering patterns are investigated in detail.
Published Version
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