Predictable surface ablation of dielectrics with few-cycle laser pulse even beyond air ionization
We study surface ablation of dielectrics with single-shot few-cycle optical pulse (∼10 fs) in air, at intensities below and above the onset of air ionization. We perform 3D analysis and careful calibration of the fluence distribution at the laser focus, spanning from linear– to nonlinear– focusing regimes, enabling to thoroughly characterize the severe limitation of the fluence delivered onto the sample surface upon increase of incident pulse energy. Despite significant beam reshaping taking place at high fluence, we demonstrate that it is nevertheless possible to confidently predict the resulting crater profiles on fused silica surface, even in the regime of filamentation.
- OSTI ID:
- 22594390
- Journal Information:
- Applied Physics Letters, Vol. 109, Issue 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dynamics of plasma formation, relaxation, and topography modification induced by femtosecond laser pulses in crystalline and amorphous dielectrics
Femtosecond laser ablation properties of borosilicate glass
Comparison of damage and ablation dynamics of multilayer dielectric films initiated by few-cycle pulses versus longer femtosecond pulses
Journal Article
·
Sat May 15 00:00:00 EDT 2010
· Journal of the Optical Society of America. Part B, Optical Physics
·
OSTI ID:22594390
+4 more
Femtosecond laser ablation properties of borosilicate glass
Journal Article
·
Mon Nov 01 00:00:00 EST 2004
· Journal of Applied Physics
·
OSTI ID:22594390
Comparison of damage and ablation dynamics of multilayer dielectric films initiated by few-cycle pulses versus longer femtosecond pulses
Journal Article
·
Fri May 01 00:00:00 EDT 2020
· Optics Letters
·
OSTI ID:22594390
+5 more