18 March 2016 Calibration of ultra high speed laser engraving processes by correlating influencing variables including correlative evaluation with SEM and CLSM
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Abstract
Laser engraving is used for decades as a well-established process e. g. for the production of print and embossing forms for many goods in daily life, e. g. decorated cans and printed bank notes. Up to now it is more or less a so-called fire-and-forget process. From the original artist’s plan to the digitization, then from the laser source itself (with electronic signals, RF and plasma discharge regarding CO2 lasers) to the behavior of the optical beam delivery — especially if an AOM is used — to the interaction of the laser beam with the material itself is a long process chain. The most recent results using CO2 lasers with AOMs and the research done with scanning electron microscope (SEM) and confocal laser scanning microscope (CLSM) — as a set for correlative microscopy to evaluate the high speed engraving characteristics — are presented in this paper.
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Markus Bohrer, Markus Bohrer, Matthias Vaupel, Matthias Vaupel, Robert Nirnberger, Robert Nirnberger, Bernhard Weinberger, Bernhard Weinberger, "Calibration of ultra high speed laser engraving processes by correlating influencing variables including correlative evaluation with SEM and CLSM", Proc. SPIE 9741, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications V, 974108 (18 March 2016); doi: 10.1117/12.2213350; https://doi.org/10.1117/12.2213350
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