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Cemal Esen
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Journal Articles

Full penetration detection in fiber laser remote cutting of electrical steel sheets from in situ monitored images using convolutional neural networks

Open Access
Max Schleier, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 37, 022010 (2025)
https://doi.org/10.2351/7.0001610
Published: March 2025
View articletitled, Full penetration detection in fiber laser remote cutting of electrical steel sheets from in situ monitored images using convolutional neural networks
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Journal Articles

Layer detection in ultrashort pulsed multilayer laser ablation by analyzing ultrasonic process emission

Open Access
Christian Lutz, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 37, 022006 (2025)
https://doi.org/10.2351/7.0001740
Published: March 2025
View articletitled, Layer detection in ultrashort pulsed multilayer laser ablation by analyzing ultrasonic process emission
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Journal Articles

Vision transformer based cut interruption detection and prediction of laser fusion cutting from monitored melt pool images

Editor’s PickOpen Access
Max Schleier, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 37, 012033 (2025)
https://doi.org/10.2351/7.0001611
Published: February 2025
View articletitled, Vision transformer based cut interruption detection and prediction of laser fusion cutting from monitored melt pool images
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Journal Articles

UV-ultrashort pulsed laser ablation of fused silica

Available to Purchase
Yongting Yang, Kay Bischoff, Dominik Mücke, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 36, 012019 (2024)
https://doi.org/10.2351/7.0001197
Published: January 2024
View articletitled, UV-ultrashort pulsed laser ablation of fused silica
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Journal Articles

Ultrashort pulse ablation of printed circuit board materials using a Bessel beam

Available to Purchase
Jan Marx, Nikolas Arthkamp, Cemal Esen, Andreas Ostendorf
Journal: Journal of Laser Applications
J. Laser Appl. 36, 012005 (2024)
https://doi.org/10.2351/7.0001170
Published: December 2023
View articletitled, Ultrashort pulse ablation of printed circuit board materials using a Bessel beam
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Journal Articles

Evaluation of an ultrashort pulsed laser robot system for flexible and large-area micromachining

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Daniel Franz, Yongting Yang, Luis Michel, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 35, 042057 (2023)
https://doi.org/10.2351/7.0001171
Published: October 2023
View articletitled, Evaluation of an ultrashort pulsed laser robot system for flexible and large-area micromachining
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Journal Articles

Development and comparison of algorithms for beam stabilization in ultrashort pulsed laser equipped on a six-axis robot

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Yongting Yang, Daniel Franz, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 35, 042039 (2023)
https://doi.org/10.2351/7.0001169
Published: October 2023
View articletitled, Development and comparison of algorithms for beam stabilization in ultrashort pulsed laser equipped on a six-axis robot
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Journal Articles

Influence of MHz bursts on the ablation efficiency of fused silica

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Yongting Yang, Simon Schwarz, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 35, 022030 (2023)
https://doi.org/10.2351/7.0001002
Published: April 2023
View articletitled, Influence of MHz bursts on the ablation efficiency of fused silica
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Journal Articles

High speed melt flow monitoring and development of an image processing algorithm for laser fusion cutting

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Max Schleier, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 34, 042026 (2022)
https://doi.org/10.2351/7.0000785
Published: October 2022
View articletitled, High speed melt flow monitoring and development of an image processing algorithm for laser fusion cutting
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Journal Articles

Development and evaluation of an image processing algorithm for monitoring fiber laser fusion cutting by a high-speed camera

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Max Schleier, Benedikt Adelmann, Cemal Esen, Uwe Glatzel, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 33, 032004 (2021)
https://doi.org/10.2351/7.0000391
Published: June 2021
View articletitled, Development and evaluation of an image processing algorithm for monitoring fiber laser fusion cutting by a high-speed camera
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Journal Articles

Direct generation of 3D structures by laser polymer deposition

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Magnus Thiele, Yunus Kutlu, Henrik Dobbelstein, Marcus Petermann, Cemal Esen, Andreas Ostendorf
Journal: Journal of Laser Applications
J. Laser Appl. 33, 022002 (2021)
https://doi.org/10.2351/7.0000166
Published: March 2021
View articletitled, Direct generation of 3D structures by laser polymer deposition
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Journal Articles

Influence of laser wavelength on the modification of friction between 100Cr6 steel and polytetrafluoroethylene by femtosecond laser-induced periodic surface structures

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Stefan Rung, Kevin Bokan, Simon Schwarz, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 32, 032017 (2020)
https://doi.org/10.2351/7.0000036
Published: July 2020
View articletitled, Influence of laser wavelength on the modification of friction between 100Cr6 steel and polytetrafluoroethylene by femtosecond laser-induced periodic surface structures
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Journal Articles

Rapid fabrication of precise glass axicon arrays by an all laser-based manufacturing technology

Editor’s PickAvailable to Purchase
Simon Schwarz, Stefan Rung, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 32, 012001 (2020)
https://doi.org/10.2351/1.5134988
Published: December 2019
View articletitled, Rapid fabrication of precise glass axicon arrays by an all laser-based manufacturing technology
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Journal Articles

Circular microchannels inside bulk polymethylmethacrylate generated by femtosecond laser using slit beam shaping

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Gian-Luca Roth, Cemal Esen, Ralf Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 31, 022603 (2019)
https://doi.org/10.2351/1.5096090
Published: April 2019
View articletitled, Circular microchannels inside bulk polymethylmethacrylate generated by femtosecond laser using slit beam shaping
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Proceedings Papers

Circular microchannels inside bulk PMMA generated by femtosecond laser using slit beam shaping

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Gian-Luca Roth, Cemal Esen, Ralf Hellmann
View Paper titled, Circular microchannels inside bulk PMMA generated by femtosecond laser using slit beam shaping
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Journal Articles

Development of a single-axis ultrasonic levitator and the study of the radial particle oscillations

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Sebastian Baer, Marco A. B. Andrade, Cemal Esen, Julio Cezar Adamowski, Andreas Ostendorf
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1433, 35–38 (2012)
https://doi.org/10.1063/1.3703133
Published: May 2012
View articletitled, Development of a single-axis ultrasonic levitator and the study of the radial particle oscillations
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Journal Articles

Analysis of the particle stability in a new designed ultrasonic levitation device

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Sebastian Baer, Marco A. B. Andrade, Cemal Esen, Julio Cezar Adamowski, Gustav Schweiger, Andreas Ostendorf
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 82, 105111 (2011)
https://doi.org/10.1063/1.3652976
Published: October 2011
View articletitled, Analysis of the particle stability in a new designed ultrasonic levitation device
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