METHOD FOR PHOTO-REGISTRATION OF A DISTRIBUTION OF LINEAR AND / OR NON-LINEAR OPTICAL PROPERTIES IN A POLYMERIC MATERIAL ACCORDING TO WHICH THE SAME IS IRRADIATED TO MODIFY THE DIRECTION OF ITS MOLECULES

摘要

The invention concerns a method for photographic recording a spatial distribution of linear and/or non-linear optical properties in a polymer material which consists in irradiating the material to modify the orientation of its molecules. The irradiation direction is perpendicular or oblique relative to the propagation direction(s) of the scanning beams.