2a to -e. In the simulation, a cylindrical heat source, centered at (x, y) = (0, 0) μm, was modeled with the volumetric heat source QV = 1.73×10 [W m ]. The maximum temperature, Tmax, within the laser spot, as determined by FEM, was 59.3 °C. A boundary condition of 25 °C was applied to the surroundings.