The study of femtosecond laser direct writing into gold thin films is of great significance in fields such as nanophotonics, micro fabrication, and functional surface preparation. This work, combining two temperature modeling (TTM) and molecular dynamics (MD) multi-scale simulations, systematically reveals the non-equilibrium dynamics mechanism and microstructure evolution of the interaction between femtosecond lasers and gold thin films at the atomic scale. By establishing a reasonable thermodynamic model, this work analyzes the photomechanical deformation of the gold film surface under femtosecond laser ablation at the picosecond timescale, resulting in jet and needle formation, and the corresponding spatiotemporal stress distribution. The results provide a theoretical bas

Чжу С. (науч. рук. Агеев Э.И.) Atomic-scale photomechanical deformation on gold film surface irradiated by femtosecond laser // Сборник тезисов докладов конгресса молодых ученых. Электронное издание. – СПб: Университет ИТМО, [2026]. URL: https://kmu.itmo.ru/digests/article/16837