Publications

Steffen Kramer, Kai Drechsel, Michael Jarwitz, Volker Schulze, and Frederik Zanger. Potential of contactless support structures for improving the part quality of AlSi10Mg PBF-LB parts. Fraunhofer Direct Digital Manufacturing Conference DDMC 2023, Bernhard Müller; Fraunhofer IWU, March 2023. [PUMA: AdditiveManufacturing Aluminium Design laser myown]

Johannes Wahl, Christian Frey, John Powell, Felix Zaiß, Michael Haas, Simon Olschok, Christian Hagenlocher, Uwe Reisgen, and Thomas Graf. Characterizing the effect of the vapor plume on laser beam characteristics during laser beam welding. In Stefan Kaierle, and Klaus R. Kleine (Eds.), High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XIII, (12878)SPIE, March 2024. [PUMA: BeamCharacterisation Diagnostics Laser MacroMaterialProcessing ProcessDevelopement Welding YbYag myown] URL

Johannes Wahl, Christian Frey, John Powell, Felix Zaiß, Michael Haas, Simon Olschok, Christian Hagenlocher, Uwe Reisgen, and Thomas Graf. Characterizing the effect of the vapor plume on laser beam characteristics during laser beam welding. In Stefan Kaierle, and Klaus R. Kleine (Eds.), High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XIII, (12878)SPIE, March 2024. [PUMA: YbYag myown Diagnostics Welding BeamCharacterisation Laser MacroMaterialProcessing ProcessDevelopement] URL

Johannes Wahl, Christian Frey, John Powell, Felix Zaiß, Michael Haas, Simon Olschok, Christian Hagenlocher, Uwe Reisgen, and Thomas Graf. Characterizing the effect of the vapor plume on laser beam characteristics during laser beam welding. 2024. [PUMA: BeamCharacterisation Diagnostics Laser MacroMaterialProcessing ProcessDevelopement Welding YbYag myown]

Johannes Wahl, Christian Frey, John Powell, Felix Zaiß, Michael Haas, Simon Olschok, Christian Hagenlocher, Uwe Reisgen, and Thomas Graf. Characterizing the effect of the vapor plume on laser beam characteristics during laser beam welding. 2024. [PUMA: YbYag myown Diagnostics Welding BeamCharacterisation Laser MacroMaterialProcessing ProcessDevelopement]

Johannes Wahl, Christian Frey, Michael Sawannia, Simon Olschok, Rudolf Weber, Christian Hagenlocher, Andreas Michalowski, and Thomas Graf. Measurement of the influence of the vapor plume on laser beam characteristics during laser beam welding. Fundamentals and Process Simulation, 2023. [PUMA: BeamCharacterisation Diagnostics Laser MacroMaterialProcessing ProcessDevelopement Welding YbYag myown]

Johannes Wahl, Christian Frey, Michael Sawannia, Simon Olschok, Rudolf Weber, Christian Hagenlocher, Andreas Michalowski, and Thomas Graf. Measurement of the influence of the vapor plume on laser beam characteristics during laser beam welding. Fundamentals and Process Simulation, 2023. [PUMA: YbYag myown Diagnostics Welding BeamCharacterisation Laser MacroMaterialProcessing ProcessDevelopement]

Johannes Wahl, Christian Frey, Michael Sawannia, Simon Olschok, Rudolf Weber, Christian Hagenlocher, Andreas Michalowski, and Thomas Graf. Measurement of the influence of the vapor plume on laser beam characteristics during laser beam welding. 2023. [PUMA: BeamCharacterisation Diagnostics Laser MacroMaterialProcessing ProcessDevelopement Welding YbYag myown]

Johannes Wahl, Christian Frey, Michael Sawannia, Simon Olschok, Rudolf Weber, Christian Hagenlocher, Andreas Michalowski, and Thomas Graf. Measurement of the influence of the vapor plume on laser beam characteristics during laser beam welding. 2023. [PUMA: YbYag myown Diagnostics Welding BeamCharacterisation Laser MacroMaterialProcessing ProcessDevelopement]

Florian Bienert, Christoph Röcker, Thomas Graf, and Marwan Abdou Ahmed. Bending of Lloyd’s mirror to eliminate the period chirp in the fabrication of diffraction gratings. Optics Express, (32)10:18430, Optica Publishing Group, May 2024. [PUMA: laser myown peer] URL

Florian Bienert, Christoph Röcker, Thomas Graf, and Marwan Abdou Ahmed. Bending of Lloyd’s mirror to eliminate the period chirp in the fabrication of diffraction gratings. Optics Express, (32)10:18430, Optica Publishing Group, May 2024. [PUMA: myown laser peer] URL

André Loescher, Florian Bienert, Lilia Pontagnier, Eric Cormier, Giorgio Santarelli, Annalisa Guandalini, Matthias Kemnitzer, Jürg Aus der Au, Thomas Graf, and Marwan Abdou Ahmed. Thin-disk multipass amplifier delivering picosecond pulses with kW average power and highly-flexible intra-burst repetition: from MHz to multi-GHz. 2023. [PUMA: GHz laser multipassamplifier myown ultrashortpulse] URL

André Loescher, Florian Bienert, Lilia Pontagnier, Eric Cormier, Giorgio Santarelli, Annalisa Guandalini, Matthias Kemnitzer, Jürg Aus der Au, Thomas Graf, and Marwan Abdou Ahmed. Thin-disk multipass amplifier delivering picosecond pulses with kW average power and highly-flexible intra-burst repetition: from MHz to multi-GHz. 2023. [PUMA: myown multipassamplifier laser GHz ultrashortpulse] URL

André Loescher, Thomas Graf, and Marwan Abdou Ahmed. Generation of beams with axially-symmetric polarization: concepts and challenges. 2024. [PUMA: AzimuthalPolarization CW Laser RadialPolarization UltrashortPulse myown] URL

André Loescher, Thomas Graf, and Marwan Abdou Ahmed. Generation of beams with axially-symmetric polarization: concepts and challenges. 2024. [PUMA: myown CW Laser AzimuthalPolarization UltrashortPulse RadialPolarization] URL

Michael Sawannia, Madlen Borkmann, Patrick Herwig, Andreas Wetzig, Christian Hagenlocher, and Thomas Graf. Influence of beam oscillation on the melt flow during laser beam fusion cutting and the resulting cut quality. 2023. [PUMA: myown laser cutting processmonitoring goniometer]

Interaction of strong laser radiation with solids and nonlinear optical diagnostics of surfaces. In Sergej A. Verfasser/in Achmanov, Vladimir I. Verfasser/in Emelʹjanov, Nikolaj I. Verfasser/in Koroteev, and Vladimir I. Emel'janov (Eds.), Teubner-Texte zur Physik ; 24, Teubner, Leipzig, 1990. [PUMA: Effect Festkörperoberfläche. Laser Laserimpuls. Nonlinear Solids. Surfaces. beams. importzotero of on. optics radiation]

Laser: mit Tab.. In Fritz Kurt Verfasser/in Kneubühl, and Markus Werner Sigrist (Eds.), Teubner Studienbücher. Physik, Teubner, Stuttgart, 1989. [PUMA: Laser Laser. Lasers. importzotero]

Christian Schmittner, André Löscher, Colin Reiff, Thomas Graf, and Marwan Abdou Ahmed. Versatile Laser Platform - from Ultrafast to CW. 2024. [PUMA: TDMPA amplifer disk laser pulsed swtiching ultrasfast]

Christian Schmittner, André Löscher, Colin Reiff, Thomas Graf, and Marwan Abdou Ahmed. Versatile Laser Platform - from Ultrafast to CW. 2024. [PUMA: TDMPA disk laser pulsed amplifer ultrasfast swtiching]