Incubation of laser ablation in fused silica with 5-fs pulses
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- Lenzner, M., Krüger, J., Kautek, W. et al. Appl Phys A (1999) 69: 465. doi:10.1007/s003390051034
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The threshold fluences for laser-induced damage of fused silica with single 5-fs pulses from a Ti:sapphire laser system were determined by extrapolating the ablated volume to zero. These thresholds are about 4 times as high as the values previously obtained from multi-shot experiments. This result is interpreted in terms of an irreversible modification of the original material below the single-shot threshold (incubation).