Efficient Phase Retrieval for Off-Axis Point Spread Functions

Author

Salome Esteban Carrasco

Date of Award

6-14-2018

Document Type

Thesis

Degree Name

Master of Science in Electrical Engineering

Department

Department of Electrical and Computer Engineering

First Advisor

Stephen C. Cain, PhD.

Abstract

A novel pairing of phase retrieval tools allows for efficient estimation of pupil phase in optical systems from images of point spread functions (PSFs). The phase retrieval algorithm uses correlation of modeled phase in the focal plane to decouple aberrations that are difficult to identify in complex PSFs. The use of a phase kernel that departs from the Fresnel approximation for off-axis PSFs is a more accurate representation of wavefront phase in finite conjugate imaging. The combination of the approximation and phase correlation algorithm can be more efficient and accurate than generic algorithms.

AFIT Designator

AFIT-ENG-MS-18-J-084

DTIC Accession Number

AD1056651

Recommended Citation

Carrasco, Salome Esteban, "Efficient Phase Retrieval for Off-Axis Point Spread Functions" (2018). Theses and Dissertations. 1830.
https://scholar.afit.edu/etd/1830