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Ultrafast laser interaction with fused silica: from damage threshold to nanomachining

M. Sentis, B. Chimier, M. Lebugle, N. Sanner, O. Utéza, and N. Varkentina

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Abstract

Major absorption channels (multi-photon, tunnel, impact ionization) are investigated for pulse duration down to 7 fs. At 7fs we showed that damage and ablation thresholds coincide due to sharp increase of the free electron density.

© 2013 Optical Society of America

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