Synthesis of Porous and Oxide Nanostructures by the Method of Laser Irradiation Using Computer Optics Elements

Laser radiation produces an effect that is mainly determined by the ability of the optical system to create a given energy distribution over the worked surface of the material. The variety of existing and developing optical systems indicates the importance of solving this problem. The use of computer optics elements for redistribution of laser intensity in the focal plane is also important. This largely determines the course of structure formation processes in processed materials. The features of synthesis of porous and oxide nanostructures by laser irradiation are considered. When frequency-modulated laser beam is used, the synergistic effect between the thermal effects of laser irradiation and the pulse-periodic laser-induced vibrations leads to a significant increase in the diffusion coefficient. This is caused by the non-stationary stress-strain state of the material to be treated.