A method of computing the diffraction integral has been developed for application to the on-axis irradiance of rectangular focused light beams with central and noncentral rectangular obscurations. Numerical methods for the generation of quantitative results are presented.
© 1992 Optical Society of America
E. Friedman, "On-axis irradiance for obscured rectangular apertures," Appl. Opt. 31, 14-18 (1992)