Numerical simulation of femtosecond laser ablation by two-temperature model

In this paper,the effects of the electron temperature and lattice temperature distribution are discussed in different approximation electron thermal conductivity by two-temperature model during the femtosecond-laser ablation metal process.A one-dimensional numerical calculation for the temperature field of femtosecond pulse laser ablation metal target is performed by finite difference method.The copper target is given as an example of the electron and lattice temperature distribution with the evolution of time and depth.The result shows that different approximation electron thermal conductivity has an important influence on the final calculated result of the temperature distribution.