Computer simulations of laser-target interaction during pulsed laser deposition

摘要

We designed a computer program to investigate laser action upon materials. Basically, this program investigates temperature shape in target under the influence of laser absorption and evaporation. A numerical model for simulating laser-target interaction has been developed. The phenomena occurring in the target are analyzed by solving one-dimensional heat conduction equation under the condition of normal vaporization. We analyzed with this program the interaction between UV laser with fluence 5J/cm~2 and a titanium target. We took into consideration the actual time shape of laser pulse. Results are in reasonable agreement with the experimental determination.