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Process regimes during welding of glass by femtosecond laser pulse bursts

Sebastian Hecker, Markus Blothe, Daniel Grossmann, and Thomas Graf

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Abstract

Various process regimes were observed during microwelding of glass with bursts of ultrashort laser pulses. Two major welding regimes and various subregimes were identified for two different materials. The radiation emitted by the laser-induced plasma was used to monitor different regimes that characterize glass microwelding. A comprehensive understanding of the various process regimes can be exploited to use the regimes according to their specific advantages, especially for industrial applications.

© 2020 Optical Society of America

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Supplementary Material (1)

NameDescription
Visualization 1       Fig. 3. a) Shadow image of the interaction zone in the welded seam. b) Plasma emission from the interaction. c) Temporal evolution of the plasma intensity as recorded by the photo detector. d) Streak image showing the time resolved depth profile of t

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