Chinese Optics Letters, 2015, 13 (5): 051403, Published Online: Sep. 20, 2018
Resonant ablation rules of femtosecond laser on Pr–Nd doped silicate glass Download: 769次
140.7090 Ultrafast lasers 160.5690 Rare-earth-doped materials 220.4000 Microstructure fabrication 320.7110 Ultrafast nonlinear optics
Abstract
Resonant effect is found in femtosecond laser ablating Pr–Nd glass. When processed with resonant wavelength of 807 nm, resonant ablation efficiency (RAE) with a single pulse can be improved by 45.22%. Furthermore, RAE closely relates to laser intensity. For resonant ablation, RAE is increased significantly when laser intensity < 0.556 × 10 14 W / cm 2 at which multiphoton ionization dominates, while it fades away when laser intensity > 0.556 × 10 14 W / cm 2 at which tunnel ionization dominates. Besides, it is also found that the ablation depth increases along with the wavelength rise when multiphoton ionization dominates, while the change rule is inversed when tunnel ionization dominates.
Zhi Luo, Ji’an Duan, Cong Wang, Xiaoyan Sun, Kai Yin. Resonant ablation rules of femtosecond laser on Pr–Nd doped silicate glass[J]. Chinese Optics Letters, 2015, 13(5): 051403.