Kautek, W., Krüger, J., Lenzner, M., Sartania, S., Spielmann, C., & Krausz, F. (1996). Laser ablation of dielectrics with pulse durations between 20 fs and 3 ps. Applied Physics Letters, 69(21), 3146–3148. https://doi.org/10.1063/1.116810
Laser-induced ablation has been extended down to a pulse duration of 20 fs generated by a Ti sapphire laser system at a wavelength of 780 nm. Barium aluminum borosilicate glass with an extremely high glass transformation temperature (∼600°C) served as target material. The most significant observation was a substantial decrease of the ablation threshold fluence at pulse durations below 100 fs. All results indicate a dominant role of multiphoton absorption in addition to collisional ionization in this time domain.
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Project (external):
Fonds zur Förderung der Wissenschaftlichen Forschung in Österreich
