Curriculum Vitae

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my publications

Radially polarized emission with 635  W of average power and 2.1  mJ of pulse energy generated by an ultrafast thin-disk multipass amplifier . In Optics Letters, (40) 24: 5758-5761, Year 2015.
Fast numerical method to predict the depth of laser welding . In Journal of Laser Applications, (29) 2: 022012, Year 2017.
Thin-disk laser operation of Ti: sapphire. In Optics letters, (42) 8: 1624--1627, Optical Society of America, Year 2017.
1617 nm emission control of an Er:YAG laser by a corrugated single-layer resonant grating mirror . In Optics Letters , (39) 3: 466, Year 2014.
Analytical expressions for the threshold of deep-penetration laser welding. In Laser Physics Letters, (12) 5: 056002, Year 2015.
Very-large-mode-area, single-mode multicore fiber . In Optics Letters, (34) 18: 2876, Year 2009.
High-Productivity Materials Processing with Ultrafast Lasers (invited). Year 2017.
High-quality processing of CFRP with a 1.1-kW picosecond laser. In Applied Physics A, Year 2015.
Pores in laser beam welding: generation mechanism and impact on the melt flow. High-Power Laser Materials Processing: Applications, Diagnostics, and Systems VII. editor(s) Kaierle, Stefan and Heinemann, Stefan W.. Proc. SPIE , (10525) SPIE, Year 2018.
Oxygen-assisted multipass cutting of carbon fiber reinforced plastics with ultra-short laser pulses. In Journal of Applied Physics, (115) 10: Year 2014.
Active Grain Structure Modulation during Laser Beam Welding. Year 2018.
Deformable mirrors for intra-cavity use in high-power thin-disk lasers. In Optics Express, (25) 4: 4254, Year 2017.
Research on lasers and laser applications. In Themenheft Forschung <<Photonics>>, Universität Stuttgart, ISSN 1861-0269, 2: 22-29, Year 2005.
HIGH-POWER LASER SOURCES ENABLE HIGH-QUALITY LASER WELDING OF COPPER. In ICALEO, 19.-23.10.2014, San Diego, USA, Year 2014.
Space-resolved Spectrometric Measurements of the Cutting Front . In Physics Procedia, Year 2011.
Power Spectral Density Evaluation of Laser Milled Surfaces. In Materials, (11) 1: Year 2018.
Flow speed of the ablation vapors generated during laser drilling of CFRP with a continuous-wave laser beam. In Applied Physics A, (123) 156, Year 2017.
Process strategies and heat input in laser welding of metal foams
.
Year 2017.
Spectral analysis of laser processing of carbon fiber reinforced plastics. In Physics Procedia, (41) 489-494, Year 2013.
Saturation of 1047 nm and 1064 nm absorption in Cr4+:YAG crystals . In IEEE Journal of Quantum Electronics, (43) 168-173, Year 2007.
A 1.78 µJ and 285fs Yb:CaF2 SESAM-modelocked thin-disk oscillator. Laser Sources and Applications III. (9893) 98930P, Year 2016.
Symmetric Vector Coupled-Mode Theory of Dielectric Waveguides. In Optics Communications, (244) 1-6: 25-35, Year 2005.
Intra-cavity polarizing element for Nd:YAG laser . In Laser Physics Letters, (3) 3: 129, Year 2006.
Benefits of very high feed rates for laser beam welding of AlMgSi aluminum alloys. In Journal of Laser Applications, Journal of Laser Applications. (30) 1: 012015--, Laser Institute of America, Year 2018.
Broadband pulse compression gratings with measured 99.7% diffraction efficiency . In Optics Letters, (39) 2: 323, Year 2014.
High-power single-stage single-crystal Yb:YAG fiber amplifier for radially polarized ultrashort laser pulses. In Applied Physics B, (123) 5: 139, Year 2017.
Thin-disk multipass amplifier delivering 10 GW of peak power. CLEO/Europe-EQEC 2017. CF--5.3, Year 2017.
Open Access Tools for the Simulation of Ultrashort-Pulse Laser Ablation. Conference-Proceedings-Teilnehmer-CD. Year 2014.
High-speed observation of the heat flow in CFRP during laser processing. In Physics Procedia, (39) 171-178, Year 2012.
Residual heat generated during laser processing of CFRP with picosecond laser pulses. In Adanced Optical Technologies, Year 2018.
Short-pulse laser processing of CFRP. In Physics Procedia, (39) 137, Year 2012.
Beam modulation to reduce electrical resistance in laser welded Al/Cu dissimilar joints. Year 2017.
Low electrical resistance of aluminum to copper joints achieved with temporal and spatial laser beam modulation. Lasers in Manufacturing Conference 2017. WLT, Year 2017.
Double-resonance grating mirror for polarization control in solid-state lasers . In Laser Physics Letters, (Vol. 3) 4: 178, Year 2006.
Solid-State Lasers at the Stability Limit: Constant Beam Properties over Large Power Ranges . In IEEE Journal of Quantum Electronics, (41) 5: 671-676, Year 2005.
Polarization selective grating mirrors used in the generation of radial polarization . In Applied Physics B, (80) 6: 707-713, Year 2005.
Simulation of laser welding using advanced particle methods. In GAMM-Mitteilungen, (39) 2: 149--169, Wiley Online Library, Year 2016.
Cw-operation of an Ytterbium-doped 19-core fiber laser . In SPIE Phtonics 2008, (6998) Year 2008.
Fundamental investigations on the spiking mechanism by means of laser beam welding of ice. In Journal of Laser Applications, (30) 1: 012009-1 - 012009-9, Year 2018.
Development of high-power thin-disk lasers: status and prespective (invited). Year 2017.
Analytical model for the extent of the heat-affected zone occurring during overlap laser welding of dissimilar materials. In Journal of Applied Physics, (122) 13: 135104, AIP Publishing, Year 2017.
Generation of custom modes in a Nd:YAG laser with a semipassive bimorph adaptive mirror . In Journal of Applied Physics B, (83) 43-50, Year 2006.
Strategien zur schädigungsarmen Laserbearbeitung von CFK. In 25. Stuttgarter Kunststoffkolloquium, Year 2017.
Radially polarized 3 kW beam from a CO2 laser with an intra-cavity resonant grating mirror . In Optics Letters, (32) 13: 1824, Year 2007.
Modulation of the laser power to prevent hot cracking during laser welding of tempered steel. In Journal of Laser Applications, (29) 4: 042008, Year 2017.
Characterization of the melt flow direction and cut front geometry in oxygen cutting with a solid state laser. In Journal of Laser Applications, (29) 2: 022202, Laser Institute of America, Year 2017.
Energy transfer mechanisms during laser pulsed processing
metals
.
Year 2015.
Laser spot welding of copper-aluminum joints using a pulsed dual wavelength laser at 532 and 1064 nm . In Physics Procedia, (56) 56: 759 - 767, Year 2014.
Modelling of temperature-controlled laser joining of aluminum and galvanized steel. Lasers in Manufacturing Conference 2017. WLT, Year 2017.
SPATIAL BEAM MODULATION TO REDUCE ELECTRICAL RESISTANCE IN LASER WELDED ALUMINUM TO COPPER DISSIMILAR JOINTS. Proceedings of the 36th International Congress on Applications of Lasers & Electro-Optics (ICALEO 2017) . Laser Institute of America, Year 2017.
Calibrated heat flow model for the determination of different heat-affected zones in single-pass laser-cut CFRP using a cw CO2 laser. In Applied Physics A, (118) 4: 1509-1516, Year 2015.
Yb:CaF2 thin-disk laser . In Optics Express , (22) 2: 1524, Year 2014.
Analytical description of the surface temperature for the characterization of laser welding processes. In International Journal of Heat and Mass Transfer, (106) 958-969, Year 2017.
High-Productivity Materials Processing with Ultrafast Lasers. Year 2017.
Influence of the focal position on the melt flow during laser welding of steel. In Journal of Laser Applications, (29) 1: 012010, Year 2017.
Thin-Disk Yb:YAG Oscillator-Amplifier Laser, ASE, and Effective Yb:YAG Lifetime . In IEEE Journal of Quantum Electronics, (45) 993, Year 2009.
Power-scaling of a Ti: sapphire thin-disk oscillator. CLEO/Europe-EQEC 2017. CA76, Optical Society of America, Year 2017.
Phase-Locking in Fibre Laser Arrays . In Laser Physics Letters, (4) 50, Year 2007.
Polarization dependence of laser interaction with carbon fibers and CFRP. In Optics Express, (22) 2: 1474-1479, Year 2014.
Advantages of laser beam oscillation for remote welding of aluminum closely above the deep-penetration welding threshold. In Journal of Laser Applications, (29) 1: Year 2017.
Time-Resolved Reflectivity and Temperature Measurements During Laser Irradiation of Crystalline Silicon. In JLMN - Journal of Laser Micro/Nanoengineering, (12) 3: 230-234, Year 2017.
High-Quality High-Speed Welding of Aluminum with 16 kW Average Laser Power. Year 2018.
Multiple reflections and Fresnel absorption in an actual 3D keyhole during deep penetration laser welding. In Journal of Physics D: Applied Physics, (39) 4703, Year 2006.
Influence of a multi-alloy aluminum design on the process efficiency during laser welding. In 8th International Conference on Photonic Technologies LANE 2014, Year 2014.
Heat accumulation during pulsed laser materials processing. In Optics Express, (22) 9: 11312, Year 2014.
Generation of Supercontinuum LP0n Modes in Highly Multimode Gradient-Index Fiber . In Advanced Solid State Lasers OSA Technical Digest (Optical Society of America, 2015)), paper ATu2A.36 , (paper ATu2A.36) Year 2015.
The MICROLAS concept: precise thrust generation in the micronewton range by laser ablation. In Small Satellite Applications, Missions, and In-Orbit Experiences Small Satellites, (1) 6: 27-34, International Academy of Astronautics, Year 2016.
Thin-disk multipass amplifier for fs pulses delivering 400 W of average and 2.0 GW of peak power for linear polarization as well as 235 W and 1.2 GW for radial polarization. In Applied Physics B, (123) 5: 156, Year 2017.
SESAM modelocked Yb:CaF2 thin disk laser delivering 285 fs pulses with peak power of 5.5 MW. 7th EPS-QEOD EUROPHOTON CONFERENCE 
"Solid State, Fibre, and Waveguide Coherent Light Sources"

. (7) SSL-5.1, European Physical Society (EPS), Year 2016.
Molecular Dynamics Simulations of Laser Induced Ablation for Micro Propulsion. High Performance Computing in Science and Engineering ‘14. 139--152, Springer, Year 2015.
Estimation of the depth limit for percussion drilling with picosecond laser pulses. In Opt. Express, (26) 9: 11546--11552, OSA, Year 2018.
Towards multiphysics simulation of deep penetration laser welding using smoothed particle hydrodynamics. VII European Congress on Computational Methods in Applied Sciences and Engineering - Eccomas Proceedia. editor(s) Papadrakakis, M. and Papadopoulos, V. and Stefanou, G. and Plevris, V.. (2405) 8196-8206, Year 2016.
Yb3+-doped ceramic thin-disk lasers of Lu-based oxides. In Optical Materials Express, (4) 2121: 2116, Year 2014.
Theoretical and experimental investigations on pressure-wave reflections and attenuation in high-power excimer lasers. Proc. SPIE 1503, Excimer Lasers and Applications III . editor(s) Letardi, Tommaso and Laude, Lucien Diego. 98 – 109, Year 1991.
Blick in die Zukunft: Hochgeschwindigkeitslaserschweißen von Aluminium und Kupfer. Year 2017.
Thin-disk laser operation of Pr3+,Mg2+:SrAl12O19 . In Optics Letters, (39) 5: 1322-25, Year 2014.
Residual heat during ultrashort laser drilling of metals. Proceedings of LPM2017 - the 18th International Symposium on Laser Precision Microfabrication. Year 2017.
Thrust noise minimization in long-term laser ablation of propellant material in the nanosecond and picosecond regime. In Optical Engineering, (56) 1: 011010--011010, International Society for Optics and Photonics, Year 2017.
Effects of Radial and Tangential Polarization in Laser Material Processing . In Physics Procedia, Year 2011.
Strain signatures associated to the formation of hot cracks during laser beam welding of aluminum alloys. In Optics and Lasers in Engineering, (100) 131--140, Elsevier, Year 2018.
Processing constraints resulting from heat accumulation during pulsed and repetive laser materials processing . In Optics Express, (25) 4: 3966-3979, Year 2017.
Quasi Gaussian beam from a multicore fibre laser by phase locking of supermodes . In Applied Physics B, (97) 3: 599-605, Year 2009.
Space and time resolved determination of thermomechanical deformation adjacent to the solidification zone during hot crack formation in laser welding.. proceedings of icaleo 2016. Year 2016.
Self-compensating amplifier design for cw and Q-switched high-power Nd:YAG lasers. In Optics Express, (14) 2191-2196, Year 2006.
Laser welding of aluminum to copper dissimilar joints with temporal and spatial modulation. Year 2017.
Multilayer polarizing grating mirror used for the generation of radial polarization in Yb:YAG thin-disk lasers . In Optics Letters, (32) 22: 3272, Year 2007.
Effects of Joining Geometries on Cracking Susceptibility and Process Efficiency Using Multi-Alloy Aluminium. In ICALEO, 19.-23.10.2014, San Diego, USA, (ICALEO 2014) Year 2014.
Single-grating-mirror intracavity stretcher design for chirped pulse regenerative amplification . In Optics Letters, (40) 7: 1532-1535, Year 2015.
Ultrafast ytterbium doped bulk laser and laser amplifier. In Applied Physics B, (69) 1: 3, Year 1999.
Semiconductor membrane external-cavity surface-emitting laser (MECSEL). In Optica, (3) 12: 1506, Year 2016.
Optically Controlled Adaptive Mirror. In Laser Physics Letters, (1) 11: 551-554, Year 2004.
Melt Dynamics and Hole Formation during Drilling with Ultrashort Pulses. In Journal of Laser Micro/Nanoengineering, (3) 3: 211, Year 2008.
Modelling of temperature-controlled laser joining of dissimilar materials. Year 2017.
Extension of the Jones Matrix Formalism to Higher Order Transverse Modes . In Optics Letters, (32) 2: Year 2007.
Fine-tuned remote laser welding of aluminum to copper with local beam oscillation. In Physics Procedia, (83) 455--462, Elsevier, Year 2016.
Heat accumulation effects on efficiency during laser drilling of metals. Year 2017.
Experimental and numerical investigation of the capillary front and side walls during laser beam welding. Year 2017.
Passively mode-locked Yb:CaF2 thin-disk laser . In Optics Express, (22) 19: 22278-22284, Year 2014.
Enhanced efficiency of AlGaInP disk laser by in-well pumping . In Optics Express, (23) 3: 2472, Year 2015.
Thrust Noise Minimization in Long-term Laser Ablation of Propellant Material in the Nanosecond and Picosecond Regime. Year 2016.
250 W single crystal fiber Yb:YAG laser. In OSA Technical Digest - Advanced Solid-State Photonics (ASSP) 2012 paper: AM6A.2, AM6A.2, Year 2012.
Highly-efficient continuous-wave intra-cavity frequency-doubled Yb:LuAG thin-disk laser with 1 kW of output power . In Optics Express, (25) 5: 4917-4925, Year 2017.
Delivery of 800 W of nearly diffraction-limited laser power through a 100 m long multi-mode fiber . In Laser Physics Letters, Year 2014.

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