Abstract

We present a novel phase imaging system based on a non-interferometric approach to obtain the complex am-plitude 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.

© 2019 SPIE/OSA