Acousto-Optics

•   Optical near- (Fresnel zone) and far field (Fraünhöfer zone) of  light diffracted by ultrasound
  in transparent media: liquid, air, plastics,...
  
• Collinear diffraction phenomena used in acousto-optic spectroscopy.
  
• Study of inverse problems leading to imaging the ultrasonic fields out of the
  acousto-optic diffracted light beam.