Open AccessBook
Commercial and Biomedical Applications of Ultrafast Lasers VI
TLDR
In this paper, three laser technologies in which TRUMPF participated will be investigated from conception to realization, focusing on the diffusion cooled coaxial CO2 laser geometry with diffraction limited resonators.Abstract:
It is astonishing how long it can take from the first idea to the industrial success of a laser technology product. Three laser technologies in which TRUMPF participated will be investigated from conception to realization. The first case study focuses on the diffusion cooled coaxial CO2 laser geometry with diffraction limited resonators. The second case study highlights some of the stages along the very successful route to implementation of the thin disk laser; from the conception at the IFSW and the ITP, both in Stuttgart, to the successful industrial installations in automotive applications. Finally the development of high power diodes for diode pumped solid state lasers is also discussed.read more
Citations
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Journal ArticleDOI
Acrylic-based resin with favorable properties for three-dimensional two-photon polymerization
Tommaso Baldacchini,Christopher N. LaFratta,Richard A. Farrer,Malvin C. Teich,Bahaa E. A. Saleh,Michael J. Naughton,John T. Fourkas +6 more
TL;DR: In this paper, an acrylic-based prepolymer resin that is ideally suited for the fabrication of three-dimensional structures with two-photon polymerization is described and characterized.
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Laser shaping of photonic materials: deep-ultraviolet and ultrafast lasers
TL;DR: In this paper, the authors exploit two extremes in laser technology, ultrafast lasers and very short wavelength F2 lasers, to microsculpt surfaces and to control refractive index in transparent glasses.
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Measurement of femtosecond laser-induced damage and ablation thresholds in dielectrics
Nicolas Sanner,Olivier Uteza,Benoît Bussiere,G. Coustillier,A. Leray,Tatiana Itina,Marc Sentis +6 more
TL;DR: In this paper, the importance of accurate determination of surface damage/ablation threshold of a dielectric material irradiated with femtosecond laser pulses is discussed, and different damage characterization techniques and data treatment procedures from a single experiment are compared and discussed.
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High repetition rate femtosecond laser nano-machining of thin films
TL;DR: In this paper, the effect of pulse repetition rate and pulse energy on femtosecond laser machining of gold-coated silicon wafer was studied and it was found that high repetition rates lead to smaller craters with uniform line width.
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Femtosecond laser treatment of 316L improves its surface nanoroughness and carbon content and promotes osseointegration: An in vitro evaluation
Halime Kenar,E. Akman,E. Kacar,Arif Demir,Hai-Woong Park,Hashim Abdul-Khaliq,Cenk Aktas,Erdal Karaoz +7 more
TL;DR: In vitro testing of laser treated plates revealed a significant improvement in adhesion of human endothelial cells and human bone marrow mesenchymal stem cells, the cells involved in microvessel and bone formation, respectively, and a significant decrease in fibroblast adhesion, which is implicated in osteolysis and aseptic loosening of prostheses.
References
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Fifteen Years of Work on Thin-Disk Lasers: Results and Scaling Laws
A. Giesen,J. Speiser +1 more
TL;DR: In this paper, the scaling laws for thin-disk laser design have been investigated for continuous-wave (CW) and Q-switched operation as well as for amplification of short (nanosecond, femtosecond) pulses.
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Multiwatt diode-pumped Yb:YAG thin disk laser continuously tunable between 1018 and 1053 nm.
TL;DR: Generation and amplification of subpicosecond pulses with high average and peak powers are also promising applications of the Yb:YAG thin disk laser.
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Femtosecond Yb:YAG laser using semiconductor saturable absorbers
TL;DR: A passively mode-locked femtosecond Yb:YAG laser is demonstrated using different semiconductor saturable absorber devices, a high-finesse and a low- finesse antiresonant Fabry–Perot saturative absorber and mode locked the laser at either 1.03 or 1.05 μm.
Patent
Carbon dioxide slab laser
TL;DR: In this paper, a carbon dioxide slab laser is used to conduct conduction to the metal surfaces of the electrodes, which serve to reflect and guide the laser light and serve to cool the gas by conduction.
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Similarity and scaling in diffusion-cooled RF-excited carbon dioxide lasers
TL;DR: In this paper, a set of similarity and scaling laws for diffusion-cooled alpha RF discharge-excited CW waveguide CO/sub 2/laser devices were derived for a range of excitation frequencies 100-160 MHz.