We present a new method of superresolving pupil-plane filter design in conf
ocal microscopy in which we specify the properties of the desired point-spr
ead function and use an optimization procedure to determine a suitable pupi
l-plane filter. A new, flexible method of filter implementation using recon
figurable binary optical elements is described, and experimental results ar
e presented. (C) 2000 Optical Society of America OCIS codes: 170.1790, 120.
2440.