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@INPROCEEDINGS{Schneller:615332,
author = {Schneller, Lukas and Henn, Manuel and Spurk, Christoph and
Hummel, Marc and Olowinsky, Alexander and Beckmann, Felix
and Moosmann, Julian and Holder, Daniel and Hagenlocher,
Christian and Graf, Thomas},
title = {{S}ynchrotron {X}-ray imaging of the formation of geometry
deviations during percussion laser drilling with ultrashort
pulses},
journal = {Journal of Laser Micro/Nanoengineering},
volume = {19},
number = {2},
issn = {1880-0688},
address = {Osaka},
publisher = {[Verlag nicht ermittelbar]},
reportid = {PUBDB-2024-06090},
pages = {151 - 154},
year = {2024},
abstract = {The main objective of this work is to provide a basic
understanding of the mechanisms and locations of defect
formation during percussion laser drilling of microholes
using ultrashort pulses.Through the application of
high-speed synchrotron X-ray imaging, we have been able to
observe the dynamic formation and evolution of these defects
in real-time. Our findings indicate that the initial
deviations in the borehole geometry are highly dependent on
the applied laser fluence. Specifically, while higher peak
fluences facilitate deeper drilling, there exists a critical
threshold beyond which the position of these deviations
begins to decrease as the fluence increases. This behavior
can be partially predicted within a certain fluence range
using an existing theoretical model, which our experimental
observations have tested and validated. Consequently, this
research not only advances our understanding of defect
formation in laser drilling but also provides a predictive
framework for optimizing drilling parameters to minimize
defects and enhance borehole quality.},
month = {Jun},
date = {2024-06-11},
organization = {The 25th International Symposium On
Laser Precision Microfabrication, San
Sebastián (Spain), 11 Jun 2024 - 14
Jun 2024},
cin = {DOOR ; HAS-User / Hereon},
ddc = {530},
cid = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)Hereon-20210428},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / DFG project
G:(GEPRIS)236616214 - SFB 1120: Bauteilpräzision durch
Beherrschung von Schmelze und Erstarrung in
Produktionsprozessen (236616214) / FS-Proposal: BAG-20211050
(BAG-20211050)},
pid = {G:(DE-HGF)POF4-6G3 / G:(GEPRIS)236616214 /
G:(DE-H253)BAG-20211050},
experiment = {EXP:(DE-H253)P-P06-20150101},
typ = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
UT = {WOS:001324468000010},
doi = {10.2961/jlmn.2024.02.2010},
url = {https://bib-pubdb1.desy.de/record/615332},
}