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Process Optimization by Bursts of Ultrafast Laser Pulses and Considerations of Absorptance and Residual Heat

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In certain cases the burst mode can lead to a higher efficient ablation process resulting in an increased specific removal rate as observed for different metals and also for silicon. Calorimetric measurements of the residual heat and the absorptance on copper indicate that the increased absorptance of a surface machined with a burst is responsible for this effect even the residual heat rests unchanged.

© 2018 The Author(s)

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