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Polarisation singularities of non-paraxial Gaussian vortex beams diffracted by an annular aperture
polarisation singularities non-paraxial annular aperture C-points
2013/7/3
Based on the vectorial Rayleigh–Sommerfeld diffraction integrals, the propagation expressions for non-paraxial Gaussian vortex beams diffracted by an annular aperture are derived, and are used to anal...