FIELD: polarizing diffraction optics.
SUBSTANCE: refractive metasurface for forming and focusing an azimuthally polarized laser beam, which is a substrate from an optical transmissive material with an applied microrelief, which is formed by biconical axicons located in nodes of a hexagonal grid as a honeycomb, which converts radiation with circular polarization into focused radiation with azimuthal polarization.
EFFECT: obtaining a beam of focused light with azimuthal polarization.
1 cl, 3 dwg
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