Laser-induced Dynamic Gratings May 2026

: Spatially varying excitation of atoms or molecules.

: Localized heating that changes the medium's refractive index. 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 : Spatially varying excitation of atoms or molecules

: Two laser beams intersect in a photosensitive medium (solid, liquid, or gas). Laser-Induced Dynamic Gratings