Laser-induced Dynamic Gratings -

(LIDGs) are temporary optical structures created when two or more coherent laser beams interfere within a material. Unlike permanent gratings etched into glass, these "transient" patterns exist only while the light is present, making them vital for real-time optical processing. How They Work

: The resulting interference pattern creates a spatial distribution of light intensity. This triggers physical changes in the material, such as: Laser-Induced Dynamic Gratings

: Localized heating that changes the medium's refractive index. (LIDGs) are temporary optical structures created when two