Следене
Ralf Hellmann
Ralf Hellmann
Professor der Physik, Lasertechnik, Photonik, University Applied Science Aschaffenburg
Потвърден имейл адрес: th-ab.de - Начална страница
Заглавие
Позовавания
Позовавания
Година
Localized exciton magnetic polarons in Te
G Mackh, W Ossau, DR Yakovlev, A Waag, G Landwehr, R Hellmann, ...
Physical Review B 49 (15), 10248, 1994
1871994
Microstructure and mechanical properties of 316L austenitic stainless steel processed by different SLM devices
A Röttger, J Boes, W Theisen, M Thiele, C Esen, A Edelmann, ...
The International Journal of Advanced Manufacturing Technology 108, 769-783, 2020
1552020
Low-temperature anti-Stokes luminescence mediated by disorder in semiconductor quantum-well structures
R Hellmann, A Euteneuer, SG Hense, J Feldmann, P Thomas, EO Göbel, ...
Physical Review B 51 (24), 18053, 1995
1181995
Rapid micro hole laser drilling in ceramic substrates using single mode fiber laser
B Adelmann, R Hellmann
Journal of Materials Processing Technology 221, 80-86, 2015
832015
Towards a versatile point-of-care system combining femtosecond laser generated microfluidic channels and direct laser written microneedle arrays
A Trautmann, GL Roth, B Nujiqi, T Walther, R Hellmann
Microsystems & Nanoengineering 5 (1), 6, 2019
802019
Homogeneous linewidth of excitons in semimagnetic CdTe/Te multiple quantum wells
R Hellmann, M Koch, J Feldmann, ST Cundiff, EO Göbel, DR Yakovlev, ...
Physical Review B 48 (4), 2847, 1993
681993
Giant exciton resonance reflectance in Bragg MQW structures
VP Kochereshko, GR Pozina, EL Ivchenko, DR Yakovlev, A Waag, ...
Superlattices and microstructures 15 (4), 471-473, 1994
571994
Compressive and tensile strain sensing using a polymer planar Bragg grating
M Rosenberger, S Hessler, S Belle, B Schmauss, R Hellmann
Optics express 22 (5), 5483-5490, 2014
532014
Planar Bragg grating in bulk polymethylmethacrylate
M Rosenberger, G Koller, S Belle, B Schmauss, R Hellmann
Optics express 20 (25), 27288-27296, 2012
532012
Optical planar Bragg grating sensor for real-time detection of benzene, toluene and xylene in solvent vapour
M Girschikofsky, M Rosenberger, S Belle, M Brutschy, SR Waldvogel, ...
Sensors and Actuators B: Chemical 171, 338-342, 2012
532012
Exciton magnetic polarons in the semimagnetic alloys Te
G Mackh, M Hilpert, DR Yakovlev, W Ossau, H Heinke, T Litz, F Fischer, ...
Physical Review B 50 (19), 14069, 1994
531994
Optimization of laser cutting processes using design of experiments
K Hühnlein, K Tschirpke, R Hellmann
Physics Procedia 5, 243-252, 2010
522010
Two-photon polymerization based large scaffolds for adhesion and proliferation studies of human primary fibroblasts
A Trautmann, M Rüth, HD Lemke, T Walther, R Hellmann
Optics & Laser Technology 106, 474-480, 2018
502018
Femtosecond laser direct generation of 3D-microfluidic channels inside bulk PMMA
GL Roth, C Esen, R Hellmann
Optics Express 25 (15), 18442-18450, 2017
492017
Comparative study of remote fiber laser and water-jet guided laser cutting of thin metal sheets
K Hock, B Adelmann, R Hellmann
Physics Procedia 39, 225-231, 2012
492012
Fabrication of a high-quality axicon by femtosecond laser ablation and CO2 laser polishing for quasi-Bessel beam generation
S Schwarz, S Rung, C Esen, R Hellmann
Optics Express 26 (18), 23287-23294, 2018
472018
Areal surface roughness optimization of maraging steel parts produced by hybrid additive manufacturing
P Wüst, A Edelmann, R Hellmann
Materials 13 (2), 418, 2020
462020
Picosecond laser patterning of ITO thin films
A Risch, R Hellmann
Physics Procedia 12, 133-140, 2011
452011
Enhanced energy and phase relaxation of excitons in the presence of bare electrons
M Koch, R Hellmann, G Bastian, J Feldmann, EO Göbel, P Dawson
Physical Review B 51 (19), 13887, 1995
451995
High aspect ratio cutting of metals using water jet guided laser
B Adelmann, C Ngo, R Hellmann
The International Journal of Advanced Manufacturing Technology 80 (9), 2053-2060, 2015
442015
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