Abstract
Light interaction with a sample modifies both intensity and phase of the illuminating wave. Any available supports for image recording are onlysensitive to intensity, but Denis Gabor [1] invented in 1948 a way to encode the phase as an intensity variation: the "hologram". Digital Holographic Microscopy (DHM) [2] implements digitally this powerful hologram. Characterization of various pollen grains and of morphology changes of neurones associated with hypotonic shock demonstrates the potential of DHM for imaging cells.