Sampling and Reconstruction of the Pupil and Electric Field for Phase Retrieval

This technology is based on sampling considerations for a band-limited function, which has application to optical estimation generally, and to phase retrieval specifically. The analysis begins with the observation that the Fourier transform of an optical aperture function (pupil) can be implemented with minimal aliasing for Q values down to Q = 1. The sampling ratio, Q, is defined as the ratio of the sampling frequency to the band-limited cut-off frequency. The analytical results are given using a 1-d aperture function, and with the electric field defined by the band-limited sinc(x) function. Perfect reconstruction of the Fourier transform (electric field) is derived using the Whittaker-Shannon sampling theorem for 1

The Fourier transform is constructed by periodic extension, i.e., by spacing copies of the transform in a definite way, recognizing that no aliasing occurs for values of the sampling ratio such that 1

This work was done by Bruce Dean, Jeffrey Smith, and David Aronstein of Goddard Space Flight Center. GSC-15947-1

This Brief includes a Technical Support Package (TSP).

Sampling and Reconstruction of the Pupil and Electric Field for Phase Retrieval (reference GSC-15947-1) is currently available for download from the TSP library.

Please Login at the top of the page to download.


White Papers

Epoxies and Glass Transition Temperature
Sponsored by Master Bond
Bridging the Armament Test Gap
Sponsored by Marvin Test Solutions
3D Printing with FDM: How it Works
Sponsored by Stratasys
Multi-Purpose Non-Contact Position/Displacement Sensing
Sponsored by Kaman
Solar Electric Systems – Power Reliability
Sponsored by SunWize
SpaceClaim in Manufacturing
Sponsored by SpaceClaim

White Papers Sponsored By: