The system uses a separating lamella to cause emergent and reference coherent waves to interfere on a sampling detector. The system allows determination of the complex amplitude of a signal wave (WS2) issuing from an object (DUT) illuminated by an known illumination wave (WS1). A source (LAS, AOM1, AOM2) generates two mutually coherent waves, the first (WS1) illuminating the object and the second providing a reference (WREF). The two waves offer a known phase difference as a function of time. A separating lamella (BS) causes the emergent wave (WS2) and the reference wave (WREF) to interfere on the detector (DET), allowing sampling of the resulting interference figure and the acquisition of a given number of interferograms.
Device for digital holography