Reference-less complex wavefields characterization with a high-resolution wavefront sensor
Reference-less complex wavefields characterization with a high-resolution wavefront sensor
Wavefront sensing is a widely used non-interferometric, single-shot, and quantitative technique providing the spatial-phase of a beam. The phase is obtained by integrating the measured wavefront gradient. Complex and random wavefields intrinsically contain a high density of singular phase structures (optical vortices) associated with non-conservative gradients making this integration step …