Ultrafast dynamics and ablation mechanism in femtosecond laser irradiated Au/Ti bilayer systems.

ABSTRACT: 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 reduce

SUBMITTER: Lian Y 

PROVIDER: S-EPMC11501701 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature