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2020 – today
- 2022
[j13]Max Schleier
, Benedikt Adelmann, Cemal Esen, Ralf Hellmann:
Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera. Sensors 22(8): 2863 (2022)- [i1]Jorrit Voigt, Thomas Bock, Uwe Hilpert, Ralf Hellmann, Michael Möckel:
Edge effects in radial porosity profiles from CT measurements and melt pool signal intensities for laser powder bed fusion. CoRR abs/2201.11483 (2022) - 2021
- [j12]Benedikt Adelmann, Max Schleier, Ralf Hellmann:
Laser Cut Interruption Detection from Small Images by Using Convolutional Neural Network. Sensors 21(2): 655 (2021) - [j11]Steffen Hessler, Marieke Rüth, Horst-Dieter Lemke, Bernhard Schmauss, Ralf Hellmann:
Deep UV Formation of Long-Term Stable Optical Bragg Gratings in Epoxy Waveguides and Their Biomedical Sensing Potentials. Sensors 21(11): 3868 (2021) - [j10]Benedikt Adelmann, Ralf Hellmann:
Simultaneous Burr and Cut Interruption Detection during Laser Cutting with Neural Networks. Sensors 21(17): 5831 (2021) - 2020
- [j9]Stefan Kefer, Theresia Sauer, Steffen Hessler, Michael Kaloudis, Ralf Hellmann:
Microstructure-Based Fiber-To-Chip Coupling of Polymer Planar Bragg Gratings for Harsh Environment Applications. Sensors 20(19): 5452 (2020)
2010 – 2019
- 2019
- [j8]Maiko Girschikofsky, Dimitrij Ryvlin, Siegfried R. Waldvogel, Ralf Hellmann:
Optical Sensor for Real-Time Detection of Trichlorofluoromethane. Sensors 19(3): 632 (2019) - [j7]Steffen Hessler, Patrick Bott, Stefan Kefer, Bernhard Schmauss, Ralf Hellmann:
Multipurpose Polymer Bragg Grating-Based Optomechanical Sensor Pad. Sensors 19(19): 4101 (2019) - 2018
- [c2]Benedikt Adelmann, Christian Lutz, Ralf Hellmann:
Investigation on shear and tensile strength of laser welded electrical sheet stacks. CASE 2018: 565-569 - 2017
- [j6]Manuel Rosenberger, Bernhard Schmauss, Ralf Hellmann:
UV-Writing of a Superstructure Waveguide Bragg Grating in a Planar Polymer Substrate. Sensors 17(9): 1964 (2017) - [j5]Maiko Girschikofsky, Manuel Rosenberger, Michael Förthner, Mathias Rommel, Lothar Frey, Ralf Hellmann:
Waveguide Bragg Gratings in Ormocer®s for Temperature Sensing. Sensors 17(11): 2459 (2017) - 2016
- [c1]Hendrikje Pauer, Manuel Rosenberger, Maiko Girschikofsky, Ralf Hellmann, Wilderich Tuschmann, Heinz Wörn:
Towards 1-component Bragg-grating based shape sensing. FUSION 2016: 1909-1915 - 2015
- [j4]Manuel Rosenberger, Waltraud Eisenbeil, Bernhard Schmauss, Ralf Hellmann:
Simultaneous 2D Strain Sensing Using Polymer Planar Bragg Gratings. Sensors 15(2): 4264-4272 (2015) - 2014
- [j3]Stefan Rung, Johannes Barth, Ralf Hellmann:
Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films. Micromachines 5(4): 943-953 (2014) - [j2]Florian Preusch, Benedikt Adelmann, Ralf Hellmann:
Micromachining of AlN and Al2O3 Using Fiber Laser. Micromachines 5(4): 1051-1060 (2014) - 2012
- [j1]Maiko Girschikofsky, Manuel Rosenberger, Stefan Belle, Malte Brutschy, Siegfried R. Waldvogel, Ralf Hellmann:
Highly Sensitive Detection of Naphthalene in Solvent Vapor Using a Functionalized PBG Refractive Index Sensor. Sensors 12(2): 2018-2025 (2012)
Coauthor Index
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