Abstract

The effects of Gaussian apodization with −0.8 waves of spherical aberration on a coherent optical system were examined. The area of study was in the near-field concentrating on the areas near the focus in the Fresnel region of an f/12 system using optical wavelengths. Computer predictions were made for four cases: unapodized-unaberrated, apodized-unaberrated, unapodized-aberrated, and apodized-aberrated. Predictions were made for cross-sectional planes perpendicular to the optical axis using Fourier optics. Meridional plane predictions were produced using a numerical integration method of determining the Kirchhoff integral.

© 1986 Optical Society of America