Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Ronald Holtz"'
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
We compare micromachining results with Gaussian and Bessel beams using an UV picosecond laser system and demonstrate feasibility to produce tungsten gratings for x-ray interferometry medical imaging, and sub-micrometer size hole patterns. The advanta
Externí odkaz:
https://doaj.org/article/1c51c76d643a4c0aa33d0f58ea938898
Publikováno v:
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Grating interferometry (GI) [1] - [3] is a novel imaging technique that has the potential to revolutionize medical imaging. While GI method was extensively developed in the last decade, the bottleneck for implementation of the method into real world
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::042e1890ca855817423908cdb7427e44
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542690
https://doi.org/10.1109/cleo/europe-eqec52157.2021.9542690
Publikováno v:
High-Power Laser Materials Processing: Applications, Diagnostics, and Systems IX.
peer-reviewed Properties of diamond are extreme. Since the first successful synthesis of diamond in 1955, the use of synthetic diamond has widely spread into diverse industries (e.g. manufacturing, electronics and optics). However, being the hardest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c736cc9b49b6a6de5d50cac77496949
https://doi.org/10.1117/12.2544963
https://doi.org/10.1117/12.2544963
Autor:
Thorsten Kramer, Markus Gafner, Ronald Holtz, Reiner Witte, Beat Neuenschwander, Noémie Dury, Stefan M. Remund, Daniel Zwygart
Publikováno v:
Procedia CIRP. 74:611-617
Ultra-fast lasers have already been used to machine rotational symmetric metallic parts for several years but did not prevail against much cheaper fiber lasers. The limiting factor up to now is the dynamics of the rotary and linear axes, that are use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3753810d7e0cb045803b060c943ff080
https://doi.org/10.1016/j.procir.2018.08.076
https://doi.org/10.1016/j.procir.2018.08.076
Publikováno v:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIV.
The microstructure of a lithium aluminosilicate (LAS) glass ceramic has been modified by ultra-short pulsed laser radiation during the crystallization process. Laser pulses with 10 ps pulse duration, 1064 nm wavelength and a repetition rate of 50 kHz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c139ae27987a1de8f1855bc3f7c55eeb
https://doi.org/10.1117/12.2514353
https://doi.org/10.1117/12.2514353
Publikováno v:
Optics express 27(20), 27628-27636 (2019). doi:10.1364/OE.27.027628
Optics express 27(20/30), 27628-27636 (2019). doi:10.1364/OE.27.027628
Published by The Optical Society of America, Washington, DC
Published by The Optical Society of America, Washington, DC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ffb5c218d5e38133a0ab31b368a9cb5
Publikováno v:
Journal of Laser Applications. 33:012053
Ultrafast lasers are frequently used to machine rotational symmetric workpieces either with tangential processing for tools or with a helical gravure approach for structuring cylinders for printing and embossing applications. The highest precision an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08195e66e178d22543626775158ea13d
https://doi.org/10.2351/7.0000324
https://doi.org/10.2351/7.0000324
Publikováno v:
New Journal of Glass and Ceramics : NJGC 8(1), 81653 (2018). doi:10.4236/njgc.2018.81001
New Journal of Glass and Ceramics : NJGC 8(1), 81653 (2018). doi:10.4236/njgc.2018.81001
Published by Scientific Research Publ. Inc., Irvine, Calif.
Published by Scientific Research Publ. Inc., Irvine, Calif.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f78baacc3a599ffebaaaacca05da11c2
Publikováno v:
SPIE Proceedings.
We report output characteristics from the FC/APC connectorized photonics crystal hollow core fiber when is subjected to coiling down to 50 mm radius, bending, torsion etc. We achieved coupling efficiency up to 75%, output average power 2 W and 24 nJ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b05c9bc9aa3eea0d5c46590d93805243
https://doi.org/10.1117/12.2250845
https://doi.org/10.1117/12.2250845
Publikováno v:
Journal of Laser Applications. 19:116-123
Refractory metals are used as construction materials for specific applications. Amongst the refractory metals, titanium has a special status due to its multi-faceted property profile and its comparatively low price. Titanium materials have outstandin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::779addc9546fb1e0355521209a309f0d
https://doi.org/10.2351/1.2716417
https://doi.org/10.2351/1.2716417