Laser & Optoelectronics Progress, Volume. 58, Issue 19, 1900005(2021)
Research Progress in Femtosecond Laser Machining Mechanism and Simulation Analysis
Fig. 1. Difference between long pulse laser processing and short pulse laser processing[14]
Fig. 2. Width of the slot obtained at different laser frequency values[33]. (a) 50 kHz; (b) 150 kHz; (c) 350 kHz
Fig. 3. Aggregate color center and astigmatic nanoparticles found in sodium fluoride crystal[40]. (a) Aggregate color center; (b) astigmatic nanoparticles
Fig. 4. Three dimensional microstructure and functional components in microchip[45]
Fig. 6. SEM photos of holes drilled in copper by laser with pulse width of 120 fs[55]
Fig. 7. Molybdenum oxide nanorods were observed on the surface of molybdenum films by scanning electron microscopy (SEM)[63]
Fig. 8. Arrangement diagram of FCC atoms, HCP atoms, surface atoms, and other atoms as well as relation between atom percentage and temperature[79]. (a) Atoms arrangement; (b) relation between atom percentage and temperature
Fig. 9. Evolution of chromium atom structure in single crystal copper under different laser pulses[85]
Fig. 10. Time evolution of energy deposition and diffusion for an SHI laser irradiation[95]
Fig. 11. Schematic of MPM method[97]
Fig. 12. Electron and lattice temperature distributions and stress distribution of aluminum film under different pulse widths[96]. (a) Electron temperature; (b) lattice temperature; (c) stress distribution
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Xuefeng Wu, Sanlin Mei. Research Progress in Femtosecond Laser Machining Mechanism and Simulation Analysis[J]. Laser & Optoelectronics Progress, 2021, 58(19): 1900005
Category: Reviews
Received: Oct. 14, 2020
Accepted: Dec. 27, 2020
Published Online: Sep. 29, 2021
The Author Email: Wu Xuefeng (wuxuefeng@hrbust.edu.cn)