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Theoretical and experimental analysis of scan angle-depending pulse front tilt in optical systems for laser scanners

• Lasse Büsing

  Lasse Büsing received his Master of Science in Physics at the RWTH Aachen University in 2011. He specialized in lasers and optics during his stay at the KTH in Stockholm 2010 and wrote his Master’s thesis at the Fraunhofer-Institute for Laser Technology in Aachen. As scientific employee he started working at the Chair for Technology of Optical Systems (TOS) at the RWTH Aachen University. His research activities are concentrated on optical system design for ultra-short pulse laser applications. In 2014 he became head of the group ‘Optical Systems’ at the TOS where he is dealing with advanced optical systems for different laser applications.

  , Tobias Bonhoff

  Tobias Bonhoff is research assistant at the Chair for Technology of Optical Systems at RWTH Aachen University, Germany. He studied Physics and received his MSc degree from the RWTH Aachen University in 2014. During his Master studies, he passed an internship in the field of laser material processing at the Townes Laser Institute, University of Central Florida. His current research focuses on thermo-optical effects in high power laser optics and on dispersive effects of ultra-short pulses.

  , Lars Behnke

  Lars Behnke is a student research assistant at the RWTH Aachen University and works at the chair for technology of optical systems. He studies Physics at RWTH Aachen University. In 2015, he wrote his Bachelor thesis about scan angle-dependent deformation of ultra-short laser pulses caused by focusing optics.

  , Jochen Stollenwerk

  Jochen Stollenwerk received his Diploma degree in Physics at the RWTH Aachen University in 1996. He was a scientific employee at the Fraunhofer Institute for Laser Technology (ILT) and received his PhD in the area of laser material processing in 2001. In the same year he became Manager Application at TRUMPF Laser Marking Systems, Grüsch, Switzerland. In 2004 he became Vice Director at the newly founded Chair for the Technology of Optical Systems at RWTH Aachen University and Head of the Research Group ‘Thin Film Laser Processing’ at the ILT. The research and teaching activities of Jochen Stollenwerk are concentrated on advanced optical systems for laser and laser systems as well as for lighting applications, EUV technology and on laser material processing.

  and Peter Loosen

  Peter Loosen received his Diploma degree at the Technical University of Darmstadt in the field of lasers for industrial manufacturing in 1980. He was a scientific employee at the Institute of Applied Physics of the Technical University of Darmstadt and received his PhD in the working group of Professor Herziger in the area of ‘High-Power CO2-Laser with Axial Gas Flow’ in 1984. After his PhD-examination he moved to the newly founded Fraunhofer-Institute for Laser Technology in Aachen (ILT) in 1985, where he was responsible for the department ‘Gas Laser’. In 1989 he additionally took over the responsibility for the departments Solid-state Lasers, Metrology and Plasma Systems of the Fraunhofer-Institute. Since 1993 he has been the deputy head of the ILT and was appointed the Professor for ‘Technology of Optical Systems’ and head of the newly formed respective institute at the RWTH-Aachen in 2004. The research and teaching activities of Peter Loosen are concentrated on the fundamentals and the technology of lasers and laser systems for industrial manufacturing and on optical systems for laser and laser systems. He has made considerable contributions in the fields of industrial high-power gas-, solid-state and diode lasers and the integration of such lasers into production applications.