Abstract

An off-axis digital holography set-up leading to the visualization of droplets dissolving in surrounding liquid is presented. The holograms processing relies on a phase-only reconstruction leading to enhance the image contrast and also to clear the perturbations coming from the set-up optics. The geometry of the interferometric beams copes with high speed image imaging to record 1000frame/s. The phase image and the reconstructed amplitude images are much brighter and sharper than those obtained by classical shadowscopy and can lead to refractive index measurements in future applications.

© 2013 Optical Society of America