NOTICE: PROPER will stop being supported at the end of 2026. It will remain available on Sourceforge after that, but there will be no updates or bug fixes.
PROPER is a library of routines for the propagation of wavefronts through an optical system using Fourier-based methods. It was developed at the Jet Propulsion Laboratory for modeling stellar coronagraphs, but it can be applied to other optical systems were diffraction propagation is of concern. It is currently available for IDL...