Infrared and Laser Engineering, Volume. 48, Issue 7, 706002(2019)
Numerical simulation of femtosecond laser multi-pulse ablation of metal iron
According to the requirements of surface microstructural manufacture, the ablation effect of ultrashort pulses on metal materials was studied. By using the double temperature equation, a multi-pulse irradiation analysis model was established. And then the temperature variations rule of single-pulse and multi-pulse ablation metal iron were quantitatively calculated. The results show that some key parameters, such as laser fluence, pulse width, and pulse interval, have noticeably influence on the electron/lattice temperature variation. Finally the number of pulses that needed for the material to reach the ablation threshold under different laser fluence is plotted, which provides a theoretical basis for the laser control in the process.
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Wang Zhen, Fu Wenjing, Zhang Rongzhu. Numerical simulation of femtosecond laser multi-pulse ablation of metal iron[J]. Infrared and Laser Engineering, 2019, 48(7): 706002
Received: Feb. 11, 2019
Accepted: Mar. 21, 2019
Published Online: Aug. 7, 2019
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