Abstract
Expressions are obtained for the diffracted field in the Fresnel and Fraunhoffer diffraction domains. It is shown that the field in the diffraction pattern is the superposition of two orthogonally polarized fields. The distribution of a field with polarization orthogonal to the incident radiation depends substantially on the domain structure parameters. Thus, for zeros of the function f (ρ)=J0((π/Δ)ρ) assigned as radii of the annular domains, a magnetooptical light concentration in an annular image is possible, while for f(ρ)=cos(πρ2/2R12) the light is concentrated at a point, i.e., the annular domain structure plays the part of a lens. The effects of light concentration are examined for both the case of annular systems and strip domains.
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