Conference contributions
2023
- J. Holland, R. Weber, and T. Graf, “Fast spectral measurement of soft x-ray emission from ultrafast laser processing,” in High-Power Laser Materials Processing: Applications, Diagnostics, and Systems XII, 2023, vol. 12414, p. 1241403. doi: 10.1117/12.2649020.
2022
- M. Henn, M. Buser, V. Onuseit, R. Weber, and T. Graf, “Combining LPBF and ultrafast laser processing to produce parts with deep microstructures,” Sep. 2022.
- D. Holder, F. Hetzel, R. Weber, and T. Graf, “Surface treatment of additively manufactured metal parts for any arbitrary wetting state between superhydrophilic and superhydrophobic,” in Procedia CIRP, 2022, vol. 111, pp. 715–720.
- E. Reinheimer, R. Weber, and T. Graf, “Influence of high feed rates during laser beam welding on the capillary geometry and the resulting weld seam quality,” in Proc. of SPIE Vol, 2022, vol. 11994, pp. 1199404--1.
- C. Röhrer, T. Kühlthau, B. Chen, G. Kleem, T. Graf, and M. Abdou Ahmed, “Design, production, and characterization of specialty optical fibers at the IFSW,” presented at the SLT, Stuttgart Laser Technology Forum, Stuttgart, Germany, 2022.
- M. Sawannia, S. Jakobs, S. Gach, S. Olschok, R. Weber, and T. Graf, “IN SITU INVESTIGATION OF THE CAPILLARY DYNAMICS IN ELECTRON BEAM WELDING USING THE POLARIZED THERMAL PROCESS EMISSION,” presented at the 41th International Congress on Applications of Lasers & Electro-Optics, Orlando, Florida, United States, 2022.
- M. Sawannia, M. Borkmann, P. Herwig, A. Wetzig, R. Weber, and T. Graf, “Influence of laser beam oscillation on the cutting front geometry investigated by high-speed 3D-measurements,” in Procedia CIRP, 2022, vol. 111, pp. 736--739. doi: 10.1016/j.procir.2022.08.100.
- D. Traunecker, M. Haas, M. Jarwitz, and T. Graf, “Detection of pores during laser beam welding of AlMg3 using the temperature field,” presented at the ICALEO, Orlando, Florida, United States, 2022.
- C. Von Arnim, G. Gessner, M. Jarwitz, A. Lechler, and O. Riedel, “Updating the Linux TAPRIO Scheduler in Deterministic Time,” in 2022 IEEE 27th International Conference on Emerging Technologies and Factory Automation (ETFA), Sep. 2022, pp. 1–7. doi: 10.1109/ETFA52439.2022.9921594.
2021
- M. A. Ahmed, “Development of high-power ultrafast lasers: Quo Vadis,” in Solid State Lasers XXX: Technology and Devices, Mar. 2021. doi: 10.1117/12.2593113.
- F. Faure, C. Hagenlocher, A. Leis, R. Weber, T. Graf, and C. Bassi, “Local Hardness Recovery in the Heat-Affected Zone of Laser Beam Weld Seams in AlMgSi-Alloys with an In-Process Laser Post-heat Treatment,” in Proceedings of the 40th International Congress on Applications of Lasers & Electro-Optics (ICALEO 2021), Oct. 2021, vol. 303.
- F. Faure, R. Weber, and T. Graf, “Influence of beam parameters on the capillary formation and the depth progress in laser spot welding of copper,” 2021.
- A. Feuer, R. Weber, and T. Graf, “Fluence dependence of the edge quality of microhole exits for percussion drilling with ultrashort laser pulses,” in Proceedings of the Lasers in Manufacturing Conference 2021, 2021.
- T. Graf, M. Hoßfeld, and V. Onuseit, “A Universal Machine: Enabling Digital Manufacturing with Laser Technology,” in Advances in Automotive Production Technology – Theory and Application, ARENA2036, 2021, pp. 386–393. doi: 10.1007/978-3-662-62962-8_45.
- M. Henn, M. Buser, V. Onuseit, R. Weber, and T. Graf, “Combining LPBF and ultrafast laser processing to produce parts with deep microstructures,” Jun. 2021. [Online]. Available: https://wlt.de/sites/default/files/2021-10/ablation_drilling_cutting/Contribution_175_final.pdf
- D. Holder et al., “Scaling the throughput of high-quality silicon laser micromachining using a 1-kW sub-picosecond laser,” 2021.
- D. Holder, M. Buser, A. Leis, R. Weber, and T. Graf, “Post-processing of additively manufactured metal parts by ultrashort laser pulses for high-quality net shape geometries and advanced functionality,” 2021. doi: 10.1088/1757-899X/1135/1/012005.
- J. Lind, J. Wagner, N. Weckenmann, R. Weber, and T. Graf, “Investigation of the influence of beam oscillation on the laser beam cutting process using high-speed X-ray imaging.,” 2021.
- E. N. Reinheimer, H. Marc, A. Olowinsky, R. Weber, and T. Graf, “High-speed synchrotron x-ray imaging of the formation of wedge-shaped capillaries during laser-beam welding at high feed rates,” München, 2021.
- J. Wagner, C. Hagenlocher, M. Hummel, A. Olowinsky, R. Weber, and T. Graf, “High-speed synchrotron X-ray investigation of full penetration welding of aluminum sheets,” 2021.
2020
- M. Henn, G. Reichardt, M. Liewald, R. Weber, and T. Graf, “Advances in Dry Metal Forming Using Volatile Lubricants Injected Through Laser-Drilled Microholes,” in TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings, Mar. 2020, vol. 149, pp. 1979–1991. doi: https://doi.org/10.1007/978-3-030-36296-6.
- D. Holder, M. Buser, A. Leis, S. Boley, R. Weber, and T. Graf, “High-precision laser ablation using OCT closed-loop control,” in Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM), Photonics West, Mar. 2020, vol. XXV, no. 1126710, pp. 1–10. doi: doi: 10.1117/12.2551133.
- A. Peter, D. Brinkmeier, M. Buser, V. Onuseit, and T. Graf, “Automated free-space beam delivery system for ultrafast laser beams in the kW regime,” in Procedia CIRP, 2020, vol. 94, pp. 951--956. doi: 10.1016/j.procir.2020.09.087.
2019
- P. Berger, “Numerical investigations of the temperature distribution around the capillary and its effect on the stability of the capillary rear wall,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2019.
- M. Buser, D. Holder, S. Boley, V. Onuseit, and T. Graf, “Productivity optimization of scanner based laser ablation processes with adaptive scan paths,” 2019.
- A. Feuer, D. J. Förster, R. Weber, and T. Graf, “Depth and quality limit for percussion-drilled microholes with depth > 1 mm using ultrashort pulsed laser radiation,” presented at the Lasers in Manufacturing Conference 2019, Munich, Germany, 2019. [Online]. Available: https://www.wlt.de/lim/Proceedings2019/data/PDF/Contribution_349_final.pdf
- C. Hagenlocher, A. Leis, F. Fetzer, D. Weller, R. Weber, and T. Graf, “Application of an analytical model to predict the grain structure of laser beam welds in aluminum alloys,” 2019.
- C. Hagenlocher, J. Wagner, D. Weller, R. Weber, and T. Graf, “PREDICTION OF THE HOT CRACKING SUSCEPTIBILITY OF LASER BEAM WELDS IN ALUMINUM ALLOYS,” 2019.
- D. Holder, S. Boley, M. Buser, C. Irion, R. Weber, and T. Graf, “OCT-controlled generation of complex geometries on stainless steel using ultra-short laser pulses,” presented at the Lasers in Manufacturing Conference, Munich, 2019.
- M. Jarwitz, J. Lind, R. Weber, and T. Graf, “Influence of superimposed intensity distributions on the welding process and the spatter behavior during laser welding of steel,” presented at the Lasers in Manufacturing Conference 2019, München, 2019.
- A. Leis, L. Voltin, R. Weber, and T. Graf, “Correlation of Spatter Formation and Process Parameters during Selective Laser Melting of AlSi10Mg,” 2019.
- A. Peter, A. H. A. Lutey, S. Faas, L. Romoli, O. Onuseit, and T. Graf, “Direct Laser Interference Patterning of antibacterial surfaces on stainless steel by means of ultrafast laser,” 2019.
- C. Röcker et al., “Flexible Sub-1 ps Ultrafast Laser Exceeding 1 kW of Output Power for High-Throughput Surface Structuring,” in Laser Congress 2019 (ASSL, LAC, LS&C), 2019, p. AM4A.2. doi: 10.1364/ASSL.2019.AM4A.2.
- M. Sawannia, P. Berger, M. Jarwitz, R. Weber, and T. Graf, “Determination of the 3D-Geometry of Cutting Fronts with High Temporal Resolution,” presented at the LiM, Lasers in Manufacturing, München, Bayern, Deutschland, 2019.
- J.-H. Wolter et al., “Ti:Sapphire Thin-Disk Laser with Plano-Convex-Shaped Single-Crystal Diamond Heat Spreaders,” in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, Jun. 2019, p. 1. doi: 10.1109/CLEOE-EQEC.2019.8871868.
2018
- S. Faas, R. Weber, and T. Graf, “Heat accumulation controlled surface functionalization of stainless steel with structuring rates up to 500 mm2/s,” in Procedia CIRP, 2018, vol. 74, pp. 324--327. doi: 10.1016/j.procir.2018.08.125.
- F. Fetzer, H. Hu, P. Berger, R. Weber, and T. Graf, “Pores in laser beam welding: generation mechanism and impact on the melt flow,” in High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VII, Feb. 2018. doi: 10.1117/12.2295798.
- D. Holder, S. Boley, M. Buser, R. Weber, and T. Graf, “In-process determination of fiber orientation for layer accurate laser ablation of CFRP,” in Procedia CIRP, 2018, vol. 74, pp. 557--561. doi: 10.1016/j.procir.2018.08.087.
- M. Jarwitz, J. Lind, R. Weber, T. Graf, N. Speker, and P. Haug, “INVESTIGATION OF THE INFLUENCE OF SUPERIMPOSED INTENSITY DISTRIBUTIONS ON THE SPATTER BEHAVIOR IN LASER WELDING OF STEEL USING ONLINE X-RAY DIAGNOSTICS,” presented at the 37th International Congress on Applications of Lasers & Electro-Optics (ICALEO 2018), Orlando, Florida, USA, Oct. 2018. [Online]. Available: https://www.lia.org/store/product/2018-icaleo-conference-proceedings-electronic-access
- C. Röhrer, C. Codemard, G. Kleem, M. A. Ahmed, and T. Graf, “Preservation of Good Beam Quality over Several Hundred Meters in Highly Multimode Fibers,” in Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), Zurich, Switzerland, 2018, p. SoW4H.2. doi: 10.1364/SOF.2018.SoW4H.2.
- C. Röhrer, F. Gérôme, B. Debord, M. Abdou Ahmed, T. Graf, and F. Benabid, “Polarization maintaining behavior of hollow-core fibers,” presented at the SLT, Stuttgart Laser Technology Forum, Stuttgart, Germany, 2018.
- M. Sawannia, P. Berger, M. Jarwitz, R. Weber, and T. Graf, “Thermal Emission-Based Geometry Determination of Hot Surfaces Generated During Laser Material Processing,” presented at the 37th International Congress on Applications of Lasers & Electro-Optics, Orlando, Florida, United States, 2018.
- R. Weber, D. J. Förster, and R. Giedel-Wagner, “X ray Emission During Ultra Short Pulsed Laser Processing,” presented at the SLT 2018, Messe Stuttgart, Jul. 2018.
2017
- B. Dannecker et al., “Thin-disk multipass amplifier delivering 10 GW of peak power,” in CLEO/Europe-EQEC 2017, 2017, p. CF--5.3.
- T. Dietrich et al., “Large-area pulse compression gratings with high efficiency and high damage threshold,” 2017.
- T. Dietrich et al., “Highly-efficient grating waveguide mirror enabling kW-class intra-cavity frequency-doubled thin-disk laser,” 2017.
- T. Dietrich et al., “CW thin-disk laser emitting kW-class beams with radial polarization,” in CLEO/Europe-EQEC 2017, 2017, p. CA--2.1.
- T. Dietrich et al., “A 1.1 kW CW intra-cavity frequency-doubled thin-disk laser,” in Advanced Solid State Lasers 2017, Nagoya, Aichi Japan, 2017, vol. OSA Laser Congress 2017 (ASSL,LAC) © OSA 2017, pp. ATu6A--1. [Online]. Available: https://www.osapublishing.org/abstract.cfm?uri=ASSL-2017-ATu6A.1
- S. Faas, C. Sciancalepore, R. Weber, L. Romoli, and T. Graf, “Surface structuring with a 500 W picosecond laser,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2017.
- D. J. Förster, R. Weber, and T. Graf, “Residual heat during ultrashort laser drilling of metals,” 2017.
- D. J. Förster, R. Weber, and T. Graf, “Heat accumulation effects on efficiency during laser drilling of metals,” 2017.
- C. Hagenlocher, J. Nolte, R. Weber, and T. Graf, “Strain behavior during the initiation process of centerline cracks in laser welding of aluminum alloys,” 2017.
- M. Jarwitz, F. Fetzer, R. Weber, and T. Graf, “Low electrical resistance of aluminum to copper joints achieved with temporal and spatial laser beam modulation,” presented at the Lasers in Manufacturing Conference 2017, Munich, Germany, Jun. 2017.
- M. Jarwitz, F. Fetzer, R. Weber, and T. Graf, “SPATIAL BEAM MODULATION TO REDUCE ELECTRICAL RESISTANCE IN LASER WELDED ALUMINUM TO COPPER DISSIMILAR JOINTS,” presented at the 36th International Congress on Applications of Lasers & Electro-Optics (ICALEO 2017), Atlanta, Georgia, USA, Oct. 2017. [Online]. Available: https://www.lia.org/store/product/2017-icaleo-conference-proceedings-electronic-access
- A. Peter, V. Onuseit, C. Freitag, S. Faas, and T. Graf, “Flexible, compact and picosecond laser capable four-beam interference setup,” 2017.
- S. Piehler, T. Dietrich, P. Wittmüss, M. A. Ahmed, O. Sawodny, and T. Graf, “Intra-cavity compensation of wavefront distortions in kW-level thindisk lasers,” in The European Conference on Lasers and Electro-Optics, 2017, p. CA\_7\_5.
- C. Pruss et al., “High power polarization shaping utilizing sub-lambda-grating structures,” 2017.
- C. Röhrer, G. Kleem, M. A. Ahmed, and T. Graf, “Limits of propagation of the fundamental mode in multimode fibers,” in Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC, 2017 Conference on), 2017, pp. 1--1.
- C. Röhrer, F. Gérôme, B. Debord, M. A. Ahmed, T. Graf, and F. Benabid, “Analysis of polarization maintaining behavior in inhibited coupling hollowcore photonic crystal fibers (IC HC-PCF),” in The European Conference on Lasers and Electro-Optics, 2017, p. CI\_P\_5.
- J.-H. Wolter, M. A. Ahmed, and T. Graf, “Power-scaling of a Ti: sapphire thin-disk oscillator,” in CLEO/Europe-EQEC 2017, 2017, p. CA\_7\_6.
2016
- B. Dannecker, M. A. Ahmed, and T. Graf, “A 1.78 µJ and 285fs Yb:CaF2 SESAM-modelocked thin-disk oscillator,” in Laser Sources and Applications III, 2016, vol. 9893, p. 98930P.
- B. Dannecker, M. Abdou Ahmed, and T. Graf, “SESAM modelocked Yb:CaF2 thin disk laser delivering 285 fs pulses with peak power of 5.5 MW,” in 7th EPS-QEOD EUROPHOTON CONFERENCE "Solid State, Fibre, and Waveguide Coherent Light Sources" , 2016, vol. 7, p. SSL-5.1.
- C. Hagenlocher, P. Stritt, H. Friebe, C. Blumenthal, R. Weber, and T. Graf, “Space and time resolved determination of thermomechanical deformation adjacent to the solidification zone during hot crack formation in laser welding.,” 2016.
- H. Hu, P. Eberhard, F. Fetzer, and P. Berger, “Towards multiphysics simulation of deep penetration laser welding using smoothed particle hydrodynamics,” in VII European Congress on Computational Methods in Applied Sciences and Engineering - Eccomas Proceedia, Crete Island, Greece, Jan. 2016, vol. 2405, pp. 8196–8206. doi: 10.7712/100016.2405.5888.
2015
- P. Berger, A. Heider, M. Boley, and D. Förster, “Capillary geometries during welding of metals observed with X-ray technique and calculated using a ray-tracing tool and a finite volume program treating heat diffusion and fluid flow,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- O. Bocksrocker, P. Berger, T. Hesse, M. Boley, and T. Graf, “Measurement of the laser cut front geometry,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- T. Dietrich, S. Piehler, M. Rumpel, T. Graf, and M. Abdou Ahmed, “Highly efficient grating mirror enables high-power fundamental-mode thin-disk laser emitting in the green by SHG,” presented at the The European Conference on Lasers and Electro-Optics, Munich, Germany, 2015.
- C. Freitag, S. Mader, M. Wiedenmann, V. Onuseit, R. Weber, and T. Graf, “Ansätze zur Steigerung der Prozesseffizienz beim Trennen von CFK mit Mehrfachüberfahrten,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- D. Förster, “Absorptivitätsänderung bei der Bestrahlung von Metallen,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- D. J. Förster, D. A. Bui, V. Onuseit, R. Weber, and T. Graf, “Energy transfer mechanisms during laser pulsed processing of metals,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- G. Granger, C. Röhrer, G. Kleem, M. Abdou Ahmed, and T. Graf, “Generation of Supercontinuum LP0n Modes in Highly Multimode Gradient-Index Fiber,” in Advanced Solid State Lasers, 2015, p. ATu2A.36. doi: 10.1364/ASSL.2015.ATu2A.36.
- A. Heider, R. Weber, D. Hermann, P. Herzog, and T. Graf, “Power modulation to stabilize laser welding of copper,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- K. Heller, S. Kessler, F. Dorsch, P. Berger, and T. Graf, “Robust ‘false friend’ detection via thermographic imaging,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- M. Jarwitz, J. Johannsen, P. Stritt, R. Weber, and T. Graf, “Heat transfer and heat conduction during laser welding of Ni-sheets to Ni-foam,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- R. Weber, C. Freitag, M. Wiedenmann, and T. Graf, “High-Quality Laser Processing of CFRP,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- R. Weber, C. Freitag, M. Wiedenmann, V. Onuseit, and T. Graf, “Kilowatt Average Power Short-Pulse Laser Processing of CFRP - Quality Challenges,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
- D. Weller et al., “Hot Crack formation when welding aluminum alloys at close-edge position with remote technology,” presented at the Lasers in Manufacturing Conference (LiM), Munich, Germany, 2015.
2014
- S. Dong, T. Haist, T. Dietrich, and W. Osten, “Hybrid curvature and modal wavefront sensor,” in Unconventional Imaging and Wavefront Sensing 2014, edited by Jean J. Dolne, Thomas J. Karr, Victor L. Gamiz, Proc. of SPIE, 2014, vol. 9227, no. 922702. [Online]. Available: http://proceedings.spiedigitallibrary.org/
- A. Feuer et al., “Influence of laser parameters on quality of microholes and process efficiency,” in Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XIX, San Francisco, California, United States, 2014, vol. 89670H. doi: 10.1117/12.2037674.
- S. Scharring, D. J. Förster, H.-A. Eckel, J. Roth, and M. Povarnitsyn, “Open Access Tools for the Simulation of Ultrashort-Pulse Laser Ablation,” 2014.
2013
- P. Berger and H. Hügel, “Fluid dynamic effects in keyhole welding - an attempt to characterize different regimes,” in Phsics Procedia, Munich, Germany, 2013, vol. 41, pp. 216–224.
- M. Boley, F. Abt, R. Weber, and T. Graf, “X-Ray and Optical Videography for 3D Measurement of Capillary and Melt Pool Geometry in Laser Welding,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
- C. Freitag, “Absorption in Carbonfasern und CFK,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
- A. Heider, F. Abt, M. Boley, R. Weber, and T. Graf, “History of one Spatter,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
- M. Jarwitz, V. Rominger, and A. Heider, “Metal vapour influence on laser welding,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
- V. Onuseit, R. Weber, M. Wiedenmann, C. Freitag, and T. Graf, “Efficient Laser Processing of CFRP,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
- P. Stritt, R. Weber, and T. Graf, “Neue Lasersicherheitskonzepte mit alternativen Schutzwandmaterialien,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
- D. Weller, C. Bezençon, P. Stritt, R. Weber, and T. Graf, “Remote laser welding of multi-alloy aluminum at close-edge position,” in Phsics Procedia, Munich, Germany, 2013, vol. 41.
2012
- X. Délen et al., “250 W single crystal fiber Yb:YAG laser,” in Lasers, Sources, and Related Photonic Devices, San Diego, California, United States, 2012, p. AM6A.2. doi: 10.1364/ASSP.2012.AM6A.2.
2011
- F. Abt, M. Boley, R. Weber, T. Graf, G. Popko, and S. Nau, “Novel X-ray system for in-situ diagnostics of laser based processes : First experimental results,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A, p. 761ff. doi: 10.1016/j.phpro.2011.03.001.
- F. Abt et al., “Camera based closed loop control for partial penetration welding of overlap joints,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A, p. 730ff. doi: 10.1016/j.phpro.2011.03.001.
- P. Berger, H. Hügel, A. Heß, R. Weber, and T. Graf, “Understanding of Humping Based on Conservation of Volume Flow,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- P. Berger, H. Hügel, and T. Graf, “Understanding Pore Formation in Laser Beam Welding,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- A. Blug et al., “Closed-loop control of laser power using the full penetration hole image feature in aluminum welding processes,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A, p. 720ff. doi: 10.1016/j.phpro.2011.03.001.
- A. Heider, A. Heß, R. Weber, and T. Graf, “Quantitative analysis of High-Speed-Videos at Welding Copper,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- A. Heider, P. Stritt, A. Heß, R. Weber, and T. Graf, “Process Stabilization at Welding Copper by Laser Power Modulation,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- A. Michalowski, C. Freitag, R. Weber, and T. Graf, “Laser surface structuring with long depth of focus,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A, pp. 357–361. doi: 10.1016/j.phpro.2011.03.001.
- P. Stritt, A. Esser, R. Weber, and T. Graf, “Laser Safety Barriers,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- C. Thiel, A. Heß, R. Weber, and T. Graf, “Stabilization of laser welding processes by means of beam oscillation,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A, pp. 351–354. doi: 10.1016/j.phpro.2011.03.001.
- R. Weber et al., “High-repetition rate short-pulse laser processing of CFRP,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- R. Weber et al., “Laser Processing of Carbon Fibre Reinforced Polymers,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A. doi: 10.1016/j.phpro.2011.03.001.
- J.-P. Weberpals, T. Hermann, P. Berger, and H. Singpiel, “Utilisation of Thermal Radiation for Process Monitoring,” in Phsics Procedia, Munich, Germany, 2011, vol. 12, Part A, pp. 704–711. doi: 10.1016/j.phpro.2011.03.001.
- J.-P. Weberpals, P. Krueger, P. Berger, and T. Graf, “Understanding the Influence of the Focal Position in Laser Welding on Spatter Reduction,” in Proceedings of the 30th International Congress on Applications of Lasers & Electro-Optics (ICALEO 2011), Orlando, Florida, USA, Oct. 2011, p. Paper 308. [Online]. Available: https://www.lia.org/store/laser-conference-proceedings/icaleo/2011
2009
- F. Abt, L. Nicolosi, A. Blug, F. Dausinger, R. Tetzlaff, and H. Höfler, “CNN-Cameras for Closed Loop Control of Laser Welding : Experimental Results and Prospects,” in Lasers in Manufacturing 2009, Munich, Germany, 2009, pp. 345–350.
- P. Gärtner and R. Weber, “Spatter formation and keyhole observation with high-speed cameras,” in Lasers in Manufacturing 2009, Munich, Germany, 2009, pp. 737–740.
- A. Heß, R. Weber, A. Heider, and T. Graf, “Forced deep-penetration welding with low-power second-harmonic assistance of cw copper welding with 1 µm wavelength,” presented at the Fifth International WLT-Conference on Lasers in Manufacturing (LiM), Munich, Germany, 2009.
- V. Onuseit, P. Gärtner, M. Abdou Ahmed, A. Voß, R. Weber, and T. Graf, “Axially symmetric polarized laser beams materials processing,” presented at the Fifth International WLT-Conference on Lasers in Manufacturing (LiM), Munich, Germany, 2009.
- C. Thiel and R. Weber, “Process Control System for High Speed Welding with Lasers of High Brightness,” presented at the Fifth International WLT-Conference on Lasers in Manufacturing (LiM), Munich, Germany, 2009.
- R. Weber, R. Gauch, and T. Graf, “Influencing the melt pool dynamics with short pulses,” presented at the Fifth International WLT-Conference on Lasers in Manufacturing (LiM), Munich, Germany, 2009.
- J.-P. Weberpals, R. Schuster, P. Berger, and T. Graf, “Utilization of Quantitative Measurement Categories for Process Monitoring,” in Lasers in Manufacturing 2009, Munich, Germany, 2009, pp. 39–42.
2007
- F. Abt, A. Heß, and F. Dausinger, “Focusing of high power single mode laser beams,” presented at the Fourth International WLT-Conference on Lasers in Manufacturing (LiM), Munich, Germany, 2007.
- S. Sommer, F. Dausinger, P. Berger, and H. Hügel, “Aerodynamic window for high precision laser drilling,” in Lasers in Manufacturing 2007, Munich, Germany, 2007, pp. 457–460.
- D. Walter, A. Michalowski, R. Gauch, and F. Dausinger, “Monitoring of the micro-drilling process by means of laser-induced shock waves,” in Lasers in Manufacturing 2007, Munich, Germany, 2007, pp. 557–562.
- D. Walter, A. Michalowski, R. Gauch, and F. Dausinger, “Monitoring of the micro-drilling process by detection of laser-induced shock waves in air,” in Lasers in Manufacturing 2007, Munich, Germany, 2007, pp. 569–573.
- J.-P. Weberpals and F. Dausinger, “Influence of Inclination Angle on Spatter Behavior at Welding with Lasers of Strong Focusability,” in Lasers in Manufacturing 2007, Munich, Germany, 2007, pp. 339–343.
2005
- J. Müller-Borhanian, “Camera Based In-Process Monitoring during Laser Beam Welding - Wave Length Dependence.,” presented at the Third International WLT-Conference on Lasers in Manufacturing (LiM), Munich, Germany, 2005.
- S. Sommer, D. Breitling, M. Kraus, C. Föhl, and F. Dausinger, “Strategies to improve quality and productivity of structuring metals with ultra-short laser pulses,” in Lasers in Manufacturing 2005, Munich, Germany, 2005, pp. 625–628.
2003
- P. Berger, F. Dausinger, and H. Hügel, “Laser Welding of Aluminium Alloys - Scaling Laws and Identification of Parameters Determining the Quality of the Weld,” in Lasers in Manufacturing 2003, Munich, Germany, 2003, pp. 241–246.
- W. Gref, F. Dausinger, and H. Hügel, “Focus-Matrix: Comparing Mono-Focus and Multi-Focus Welding with YAG-Lasers,” in Lasers in Manufacturing 2003, Munich, Germany, 2003, p. 38.
- A. Ruf, P. Berger, F. Dausinger, and H. Hügel, “Continuous multi-phase modeling of laser ablation with short pulses,” in Lasers in Manufacturing 2003, Munich, Germany, 2003, pp. 357–362.
2001
- G. Ambrosy, D. Lindenau, P. Berger, and H. Hügel, “Effects of Magnetically Supported Laser Beam Welding of Aluminium Alloys,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 416.
- F. Dausinger, “Femtosecond Pulses for Medicine and Production Technology - Overview of a German National Project,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 392.
- H. Hügel, “Modeling, Simulation and Process Monitoring - Introduction to session 2,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 75.
- S. M. Klimentov et al., “The role of plasma in ablation of materials by ultrashort laser pulses,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 273.
- U. Kutschera, G. Chromik, and J. Arnold, “Laser Hybrid Joining of Magnesium Alloys,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 427.
- M. G. Müller et al., “An Online Monitoring System Validated by Visualization of Laser Welding Phenomena,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 155.
- J. Radtke, “Helical Drilling of High Quality Micro Holes in Steel an Ceramics with Short and Ultrashort Pulsed Lasers,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 331.
- A. Ruf et al., “Modeling and experimental analysis of hole formation in laser deep drilling with short and ultra-short pulses,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 214.
- A. Strauch, D. Degenhardt, P. Berger, J. Richardt, H. Tiedke, and H. Hügel, “Efficient solution of the inverse problem in laser penetration welding using simulations and experiments,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 227.
- R. Xiao, G. Ambrosy, M. Leimser, P. Berger, T. Zuo, and H. Hügel, “Effect of External Current on LAser Beam Welding of Aluminum Alloys with Filler Wire,” in Lasers in Manufacturing 2001, Munich, Germany, 2001, p. 520.
1997
- V. I. Mazhukin, V. V. Nosov, P. Berger, G. Callies, and H. Schittenhelm, “Mathematical formulation and analysis of nonequilibrium heating of metals,” in 15th IMACS World Congress on Scientific Computation, Modelling and Applied Mathematics, Berlin, 1997, vol. 3: Computational physics, chemistry and biology, pp. 271–276.
1996
- A. Giesen, U. Brauch, M. Karszewski, C. Stewen, and A. Voß, “New Concepts for High Power Diode Pumped Solid State Lasers,” in Proceedings of the 12th International Congress LASER 95, Munich, Germany, 1996, p. 342.
- A. Raiber, F. Dausinger, and H. Hügel, “Mikrostrukturierung von Keramiken im Direct-Write-Verfahren mit Festkörperlasern,” in Proceedings of the 12th International Congress LASER 95, Munich, Germany, 1996, p. 999.
1994
- U. Bethke, F. Dausinger, D. Pähte, F. Trösken, and P. Zopf, “Schweißtechnischer Vergleich zwischen Hochleistungfestkörper- und CO2-Laser,” in Proceedings of the 11th International Congress LASER 93, Munich, Germany, 1994, p. 546.
1993
- P. Berger, “Some Aspects of the Classification of Models in Deep Penetration Welding,” in Proceedings on Modelling of Laser Material Processing, Igls/Innsbruck, Austria, 1993, no. 8th Meeting.
- M. Kern and M. Beck, “Absorption simulation of a polarized laser beam at deep penetration welding,” in Proceedings on Modelling of Laser Material Processing, Igls/Innsbruck, Austria, 1993, no. 8th Meeting.
1992
- M. Beck and P. Berger, “Numerical simulation of laser materials processing within the framework of EU 194,” in Proceedings on Modelling of Laser Material Processing, Vienna, Austria, 1992, no. 6th Meeting.
- M. Beck, P. Berger, N. Palle, and J. A. Dantzig, “Aspekte der Schmelzbaddynamik beim Laserschweißen mit hoher Bearbeitungsgeschwindigkeit,” in Proceedings of the 10th International Congress LASER 91, Munich, Germany, 1992, pp. 429–434.
- M. Beck and M. Danke, “Simplified Modell of Deep Penetration Welding with Two Lasers,” in Proceedings on Modelling of Laser Material Processing, Liverpool, UK, 1992, no. 7th Meeting.
- R. Edler and P. Berger, “New nozzle concept for cutting with high power lasers,” in Proceedings of the Laser Materials Processing Symposium ICALEO’91, San Jose (Fl), 1992, vol. LIA Vol. 74 / SPIE Proceedings. Vol. 1722, pp. 253–262.
- E. Meiners, F. Dausinger, and M. Wiedmaier, “Micro machining of hard materials using Nd:YAG laser,” in Proceedings of the 10th International Congress LASER 91, Munich, Germany, 1992, p. 284.
- U. Schreiner-Mohr, F. Dausinger, and H. Hügel, “New aspects of cutting with CO2-lasers,” in Proceedings of the Laser Materials Processing Symposium ICALEO’91, San Jose (Fl), 1992, vol. LIA Vol. 74 / SPIE Proceedings. Vol. 1722, pp. 263–272.
- R. Wahl, F. Dausinger, E. Dalibor, A. Kolb, and M. Menzer, “Gezielte Nachführung der linearen Polarisation beim räumlichen CO2-Laserstrahlschneiden und -schweißen von Karosserieblech,” in Proceedings of the 10th International Congress LASER 91, Munich, Germany, 1992, p. 390.
1991
- A. Holzwarth, J. Griebsch, and P. Berger, “Theoretical and experimental investigations on pressure-wave reflections and attenuation in high-power excimer lasers,” in Proc. SPIE 1503, Excimer Lasers and Applications III, The Hague, Netherlands, Sep. 1991, pp. 98 – 109. doi: 10.1117/12.46919.
1990
- M. Bea, S. Borik, and A. Giesen, “Adaptive Optik für CO2-Hochleistungslaser,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 446.
- M. Beck, F. Dausinger, and H. Hügel, “Modell zur Beschreibung der Energieeinkopplung von CO2-Laserstrahlung beim Tiefschweißen,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 550.
- P. Berger, M. Herrmann, and H. Hügel, “Untersuchungen von Laserschneiddüsen,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, pp. 630–634.
- F. Dausinger, R. Edler, U. Schreiner, E. Bächle, and K. Riehle, “Geschwindigkeitsbegrenzende Faktoren beim Laserstrahlschneiden von schwer trennbaren metallischen Werkstoffen,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 605.
- A. Giesen and R. W. Serchinger, “Absorptionsmessungen an optischen Komponenten und zwei Stahllegierungen bei 10,6 µm,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 466.
- A. Holzwarth, K. Grünewald, and P. Berger, “Zweidimensionale Berechnung der Ausbreitung von Dichtestörungen in gepulsten Hochleistungslasern,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, pp. 17–21.
- R. Paul, A. Giesen, and M. von Borstel, “Anpassung hochfrequenzangeregter Laser an die Energieversorgung,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 71.
- M. von Borstel, A. Giesen, and R. Paul, “Zündverhalten von hochfrequenz-angeregten CO2-Lasern,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 424.
- H. P. Wagner, S. Borik, and A. Giesen, “Änderung der Eigenschaften optischer Komponenten bei Bestrahlung,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 789.
- R. Wahl, W. Bloehs, and F. Dausinger, “Genauigkeitsanforderungen beim Laserstrahlschweißen mit Industrierobotern,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 558.
- T. Wahl and F. Dausinger, “Tiefschweißen mit gepulstem CO2-Laserstrahl,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 539.
- U. Zoske, A. Giesen, and H. Hügel, “Strahlformung von CO2-Laserstrahlung,” in Proceedings of the 9th International Congress LASER 89, Munich, Germany, 1990, p. 98.
1989
- M. Beck and F. Dausinger, “Modelling of laser deep welding processes,” in European Scientific Laser Workshop on Mathematical Simulation, Lissabon, Portugal, Sep. 1989, pp. 201–216.
- A. Holzwarth, K. Grünewald, P. Berger, and H. Hügel, “Two-Dimensional Time Dependent Modelling Of Density Perturbations In CO2 And Excimer Lasers,” in Seventh International Symposium on Gas Flow and Chemical Lasers, Vienna, Austria, Jun. 1989, vol. 1031. doi: 10.1117/12.950548.
1987
- P. Berger, R. Holtbecker, A. Holzwarth, and H. Hügel, “Dichteschwankungen in gepulsten CO2-Hochleistungslasern,” in Proceedings of the 8th International Congress LASER 87, Munich, Germany, 1987, pp. 317–320.
- A. Giesen, S. Borik, U. Schreiner, and F. Dausinger, “Vermessung fokussierender Systeme für Hochleistungs-CO2-Laser,” in Proceedings of the 8th International Congress LASER 87, Munich, Germany, 1987, p. 483.