Abstract:
A series of studies was carried out on the ablation of steel, Si3N4 ceramic, and diamond in air by femtosecond (200 and 900 fs) pulses of different wavelengths (532 and 266 nm) and in a wide energy density range (1 — 103 J cm-2 ). The ablation rates were measured for different geometries of the irradiation surface [a shallow crater and a channel with a high (up to 10) aspect ratio]. The ablation rates (in a shallow crater) and the morphologies of the irradiated surface were compared for femtosecond and longer (220 ps, 7 ns) pulses. The role of the laser-generated plasma in the ablation of materials by subpicosecond pulses as well as the prospects for the practical application of ultrashort laser pulses in the processing of materials are analysed.
Citation:
T. V. Kononenko, V. I. Konov, S. V. Garnov, R. Danielius, A. Piskarskas, G. Tamosauskas, F. Dausinger, “Comparative study of the ablation of materials by femtosecond and pico- or nanosecond laser pulses”, Kvantovaya Elektronika, 28:2 (1999), 167–172 [Quantum Electron., 29:8 (1999), 724–728]
Linking options:
https://www.mathnet.ru/eng/qe1560
https://www.mathnet.ru/eng/qe/v28/i2/p167
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