We present a novel phase imaging system based on a non-interferometric approach to obtain the complex amplitude of a wavefront. We sample the wavefront with a high-speed spatial light modulator. Then, a single lens forms a time-dependent light distribution on its focal plane, where a position detector is placed. This simple setup, with the aid of computational techniques, provides high spatial resolution, power efficiency, high dynamic range, and allows to work in spectral regions outside the VIS range. The validity of the technique is demonstrated by measuring both optical aberrations and phase distributions of transparent samples.

Date Published: 19 July 2019
PDF: 3 pages
Proc. SPIE 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III, 110781P (19 July 2019); doi: 10.1117/12.2526794

Published in SPIE Proceedings Vol. 11078:
Optical Coherence Imaging Techniques and Imaging in Scattering Media III
Maciej Wojtkowski; Stephen A. Boppart; Wang-Yuhl Oh, Editor(s)