A new class of axially apodizing continuously transmitting filters is analytically determined and numerically implemented. The longitudinal and lateral properties of the associated point-spread function are displayed both for a single filtered lens and for a combination with a laterally superresolving mask in a confocal configuration. Interesting imaging properties relative to the increase in axial contrast and transverse resolving power for dephasing ring-free pupil filters of moderate losses in luminosity are predicted.
© 2002 Optical Society of America
(070.6110) Fourier optics and signal processing : Spatial filtering
(180.1790) Microscopy : Confocal microscopy
(180.5810) Microscopy : Scanning microscopy
(180.6900) Microscopy : Three-dimensional microscopy
(350.5730) Other areas of optics : Resolution
Gilbert Boyer, "New class of axially apodizing filters for confocal scanning microscopy," J. Opt. Soc. Am. A 19, 584-589 (2002)