The three-dimensional intensity distribution in the focal region of lenses with filters consisting of arrays of rings is investigated in the paraxial Debye regime. The axial behavior can exhibit a variety of different effects.
© 1998 Optical Society of America
C. J. R. Sheppard, G. Calvert, and M. Wheatland, "Focal distribution for superresolving toraldo filters," J. Opt. Soc. Am. A 15, 849-856 (1998)