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Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses

Luther-Davies, Barry; Rode, Andrei V; Madsen, Nathan; Gamaly, Eugene G


We report experiments on the ablation of arsenic trisulphide and silicon using high-repetition-rate (megahertz) trains of picosecond pulses. In the case of arsenic trisulphide, the average single pulse fluence at ablation threshold is found to be >100 times lower when pulses are delivered as a 76-MHz train compared with the case of a solitary pulse. For silicon, however, the threshold for a 4.1-MHz train equals the value for a solitary pulse. A model of irradiation by high-repetition-rate pulse...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Optical Engineering
DOI: 10.1117/1.1905363


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