Horst Complex

prof.dr.ir. G.R.B.E. Römer (Gert-Willem)

Professor
ET-MS3-LP
Horst Complex N102
g.r.b.e.romer@utwente.nl
+31534892519
Business card

After obtaining a Master degree in Electrical Engineering, I obtained a PhD degree at the University of Twente, on Modelling and control of laser surface treatment, in 1999. Ever since, my scientific interests are on the fundamental physical phenomena occurring during laser‐material inter-action, in order to optimize laser‐material processing for laser‐based manufacturing. Main processes are material processing using ultra short pulsed laser sources for micro‐ and nano‐machining, and laser cladding and additive manufacturing (3D printing) using high power laser sources. As well as, the development of models, as well as sensors and real‐time control algorithms for laser‐material processes (to ensure reliable processing results).

From 2008 to 2017, I was an associate professor at the chair of Applied Laser Technology at the University of Twente. From 2017 I was an associate professor, and since 2020 I am full professor of the research chair Laser Processing.

Besides chair holder of the research chair, I am Research Coordinator of the department of Mechanics of Solids, Surfaces & Systems (MS3).

Expertise

  • Material Science

    • Laser
    • Surface
    • Material
    • Surface Structure
    • Laser Pulse

  • Physics

    • Steel

  • Engineering

    • Induced Periodic Surface Structure
    • Surfaces

Organisations

My main research interests include:

  • fundamental physical phenomena occurring during laser-material interaction
  • optimizing laser-material processing for laser-based manufacturing
  • material processing using ultra short pulsed laser sources, in the fs and ps regime, for micro- and nano-machining
  • high power laser surface treatment
  • high power laser-based Directed Energy Deposition, an Additive Manufacturing technique
  • means and methods for monitoring/sensing and control of laser-material processing systems
  • applications of innovative laser-based manufacturing

Publications

Jump to: 2024 | 2023 | 2022

2024

Dynamic High Power Laser Beam Shaping in Directed Energy Deposition (2024)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. Bremer, L.https://doi.org/10.3990/1.9789036560832Design and implementation of dynamic beam shaping in high power laser processing by means of a Deformable Mirror (2024)Optics & Laser Technology, 177. Article 111066 (E-pub ahead of print/First online). Bremer, S. J. L., Aarts, R. G. K. M. & Römer, G.-W. R. B. E.https://doi.org/10.1016/j.optlastec.2024.111066

2023

Influence of water layer thickness on crater volume for nanosecond pulsed laser ablation of stainless steel (2023)Applied physics A: Materials science and processing, 129(12). Article 824. van der Linden, S., Hagmeijer, R. & Römer, G. R. B. E.https://doi.org/10.1007/s00339-023-07050-wRevealing the effects of laser beam shaping on melt pool behaviour in conduction-mode laser melting (2023)Journal of Materials Research and Technology, 27, 3955-3967. Ebrahimi, A., Sattari, M., Babu, A., Sood, A., Römer, G. W. R. B. E. & Hermans, M. J. M.https://doi.org/10.1016/j.jmrt.2023.11.046Identifying the influence of bubble size and position on crater formation during underwater nanosecond laser ablation of stainless steel (2023)Applied physics A: Materials science and processing, 129(8). Article 580. van der Linden, S., Hagmeijer, R. & Römer, G. R. B. E.https://doi.org/10.1007/s00339-023-06843-3Two-photon microscopy for microrobotics: Visualization of micro-agents below fixed tissue (2023)PLoS ONE, 18(8 August). Article e0289725. Huaroto, J. J., Capuano, L., Kaya, M., Hlukhau, I., Assayag, F., Mohanty, S., Römer, G.-w. & Misra, S.https://doi.org/10.1371/journal.pone.0289725Underwater ablation using short and ultrashort laser pulses (2023)[Thesis › PhD Thesis - Research UT, graduation UT]. University of Twente. van der Linden, S.https://doi.org/10.3990/1.9789036556798Laser intensity profile as a means to steer microstructure of deposited tracks in Directed Energy Deposition (2023)Materials & Design, 227. Article 111725. Bremer, S. J. L., Luckabauer, M. & Römer, G.-W. R. B. E.https://doi.org/10.1016/j.matdes.2023.111725Creation of Material Functions by Nanostructuring (2023)In Springer Series in Optical Sciences (pp. 827-886) (Springer Series in Optical Sciences; Vol. 239). Springer. Mezera, M., Florian, C., Römer, G. W., Krüger, J. & Bonse, J.https://doi.org/10.1007/978-3-031-14752-4_23

2022

Fabrication of microstructures in the bulk and on the surface of sapphire by anisotropic selective wet etching of laser-affected volumes (2022)Journal of micromechanics and microengineering, 32(12). Article 125003. Capuano, L., Berenschot, J. W., Tiggelaar, R. M., Feinaeugle, M., Tas, N. R., Gardeniers, J. G. E. & Römer, G. R. B. E.https://doi.org/10.1088/1361-6439/ac9911The Magic of Light: Light as a Production Tool (2022)[Book/Report › Inaugural speech]. University of Twente. Römer, G. R. B. E.Thermo-fluidic behavior to solidification microstructure texture evolution during laser-assisted powder-based direct energy deposition: An integrated approach (2022)In Twenty-fifth Engineering Mechanics Symposium, October 25-October 26, 2022. Hotel Papendal, Arnhem (pp. 38-38). Eindhoven University of Technology. Sattari, M., Luckabauer, M. & Römer, G. R. B. E.

Other contributions

Click here for an overview of previous projects and current projects running in my chair.

Research profiles

Address

University of Twente

Horst Complex (building no. 20), room N102
De Horst 2
7522 LW Enschede
Netherlands

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Organisations

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