biostudies-literatureUnknown12(24)Lian YThe significance of ultrafast laser-induced energy and mass transfer at interfaces has been growing in the field of nanoscience and technology. Nevertheless, the complexity arising from non-linear and non-equilibrium optical-thermal-mechanical interactions results in intricate transitional behaviors. This complexity presents challenges when attempting to analyze these phenomena exclusively through modeling or experimentation. In this study, we conduct time-resolved reflective pump-probe imaging and molecular-dynamics coupled two-temperature model (MD-TTM) simulations to investigate the ultrafast dynamics and ablation mechanism of Au/Ti bilayer systems. The calculated energy absorption curves indicate that Au film reduces the energy deposition in the underlying Ti layer, resulting in reduceNanophotonics (Berlin, Germany)4461-4473https://www.ebi.ac.uk/biostudies/studies/S-EPMC11501701biostudies-literatureUltrafast dynamics and ablation mechanism in femtosecond laser irradiated Au/Ti bilayer systems.PMC11501701Ye MJiang LTao WChen ZLian YLin GNing ZSun JfalseUltrafast dynamics and ablation mechanism in femtosecond laser irradiated Au/Ti bilayer systems.The significance of ultrafast laser-induced energy and mass transfer at interfaces has been growing in the field of nanoscience and technology. Nevertheless, the complexity arising from non-linear and non-equilibrium optical-thermal-mechanical interactions results in intricate transitional behaviors. This complexity presents challenges when attempting to analyze these phenomena exclusively through modeling or experimentation. In this study, we conduct time-resolved reflective pump-probe imaging and molecular-dynamics coupled two-temperature model (MD-TTM) simulations to investigate the ultrafast dynamics and ablation mechanism of Au/Ti bilayer systems. The calculated energy absorption curves indicate that Au film reduces the energy deposition in the underlying Ti layer, resulting in reduce2023-01-01T00:00:00Z2023 Dec2025-04-04T00:46:13.151Z2025-04-04T00:46:13.151ZS-EPMC115017013963470610.1515/nanoph-2023-0497