Fig. 4: Vector diffraction of light with a high-NA objective.
From: Efficient full-path optical calculation of scalar and vector diffraction using the Bluestein method
a Radially polarized light focused by an aplanatic objective (NA: 1.4). Insets: resultant intensity profiles in the transverse and longitudinal planes. b, c Line plots of the intensity in the transverse and longitudinal directions calculated using different methods. d Spiral phase plate and the phase depth distribution with the azimuthal angle. e Doughnut-shaped intensity in the focal plane. f–h Intensity distributions of different polarization components along the x, y, and z directions, respectively. i Line plots of the intensity profile of different polarization components in the focal plane. j Intensity distribution in the longitudinal plane. k–m Phase distributions of different polarization components. n, o Enlarged partial intensity distribution as labeled in (e, j), respectively. p Comparison of computation time for vector diffraction calculation in the xy-plane, yz-plane, and volumetric three dimensions
