Wd. Furlan et al., ON-AXIS IRRADIANCE FOR SPHERICALLY ABERRATED OPTICAL-SYSTEMS WITH OBSCURED RECTANGULAR APERTURES - A STUDY USING THE WIGNER DISTRIBUTION FUNCTION, J. mod. opt., 45(1), 1998, pp. 69-77
The assessment of optical focusing systems with obscured rectangular p
upil masks suffering from spherical aberration is performed by use of
a novel technique for the computation of the irradiance distribution a
long the optical axis. It is shown that ail the values of this functio
n for a variable spherical aberration can be obtained from a single bi
dimensional phase-space representation: a Wigner distribution function
associated with the pupil function of the system. Several numerical e
xamples illustrating the behaviour of such aberrated systems are prese
nted and some interesting features of the results are discussed.