Resonant ablation rules of femtosecond laser on Pr–Nd doped silicate glass
Resonant ablation rules of femtosecond laser on Pr–Nd doped silicate glass
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DOI：
10.3788/col201513.051403
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发表时间：
2015-05
影响因子：
3.5
通讯作者：
Z. Luo;Ji’an Duan;Cong Wang;Xiao-yan Sun;Kai Yin
中科院分区：
文献类型：
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作者：
Z. Luo;Ji’an Duan;Cong Wang;Xiao-yan Sun;Kai Yin
在飞秒激光烧蚀Pr-Nd玻璃中发现了共振效应。当采用807 nm的谐振波长时，单脉冲的谐振烧蚀效率（RAE）可提高45.22%。此外，RAE与激光强度密切相关。对于共振烧蚀，当激光强度为0.556×1014时，RAE显着增加。W/cm 2，隧道电离占主导地位。此外，还发现当多光子电离占主导地位时，烧蚀深度沿着增大，而当隧道电离占主导地位时，烧蚀深度的变化规律正好相反。
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 0.556×1014??W/cm2 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.