scholarly journals Enhancing precision in fs-laser material processing by simultaneous spatial and temporal focusing

2014 ◽  
Vol 3 (5) ◽  
pp. e169-e169 ◽  
Author(s):  
Robert Kammel ◽  
Roland Ackermann ◽  
Jens Thomas ◽  
Jörg Götte ◽  
Stefan Skupin ◽  
...  
Keyword(s):  
Material Processing ◽  
Laser Material Processing ◽  
Laser Material ◽  
Temporal Focusing ◽  
Fs Laser

scholarly journals Squared Focal Intensity Distributions for Applications in Laser Material Processing

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4981
Author(s):  
Henrike Schlutow ◽  
Ulrike Fuchs ◽  
Frank A. Müller ◽  
Stephan Gräf
Keyword(s):  
Material Processing ◽  
Focal Spot ◽  
Beam Shaping ◽  
Output Beam ◽  
Laser Material Processing ◽  
Laser Material ◽  
Micro Channels ◽  
Fs Laser ◽  
Focal Intensity ◽  
Good Agreement

Tailored intensity profiles within the focal spot of the laser beam offer great potential for a well-defined control of the interaction process between laser radiation and material, and thus for improving the processing results. The present paper discusses a novel refractive beam-shaping element that provides different squared intensity distributions converted from the Gaussian output beam of the utilized femtosecond (fs) laser. Using the examples of surface structuring of stainless-steel on the micro- and nano-scale, the suitability of the beam-shaping element for fs-laser material processing with a conventional f-Theta lens is demonstrated. In this context, it was shown that the experimental structuring results are in good agreement with beam profile measurements and numerical simulations of the beam-shaping unit. In addition, the experimental results reveal the improvement of laser processing in terms of a significantly reduced processing time during surface nano-structuring and the possibility to control the ablation geometry during the fabrication of micro-channels.

Intelligent, low-cost system for fume control during laser material processing

2005 ◽  
Author(s):  
Ramin Sattari ◽  
Stephan Barcikowski ◽  
Thomas Püster ◽  
Andreas Ostendorf ◽  
Heinz Haferkamp
Keyword(s):  
Material Processing ◽  
Low Cost ◽  
Laser Material Processing ◽  
Laser Material ◽  
Cost System

scholarly journals Non-disturbing Boundary Conditions for Modeling of Laser Material Processing

2014 ◽  
Vol 56 ◽  
pp. 421-428 ◽  
Author(s):  
I.O. Kovaleva ◽  
S.N. Grigoriev ◽  
A.V. Gusarov
Keyword(s):  
Material Processing ◽  
Boundary Conditions ◽  
Laser Material Processing ◽  
Laser Material
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