Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Carsten Momma"'
Ultrashort pulse lasers have found widespread applications in precise micromachining. Here, we present our brief perspective on the development of this innovative technology from the 1990s until today.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51dc33da23d421f91be7360c4bdc6c7a
https://publica.fraunhofer.de/handle/publica/437365
https://publica.fraunhofer.de/handle/publica/437365
Autor:
Carsten Momma, Schuon Robert, Wolfram Schmidt, Niels Grabow, Klaus-Peter Schmitz, Robert Schuon, Heinz Dr. Müller, Thomas Lenarz, Kerstin Schümann, Tamara Wilfling, Gerrit Paasche
Publikováno v:
Current Directions in Biomedical Engineering, Vol 4, Iss 1, Pp 505-508 (2018)
To provide an effective and safe therapy for chronic Eustachian tube dysfunction (ETD), biodegradable stents should be developed to restore important functions, e.g. middle ear ventilation and drainage. After defining general requirements specificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d04ccfd7fabf2ada1ac09cd4d7bb331
https://doi.org/10.1515/cdbme-2018-0121
https://doi.org/10.1515/cdbme-2018-0121
Publikováno v:
ResearcherID
The pulse duration requirements for melting-free and burr-free drilling of metals have been observed in detail. It will be shown that the highest process efficiency and hole quality can be achieved by using pulse durations in the subpicosecond time s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82e948495d5ea4b6bf017e89cb43ea2f
https://doi.org/10.2351/1.521909
https://doi.org/10.2351/1.521909
Publikováno v:
Physik Journal. 55:41-44
Ultrakurze Laserpulse ermoglichen fur nahezu alle Materialien eine extrem feine Mikrostrukturierung, gekennzeichnet durch sehr hohe Reproduzierbarkeit sowie minimale thermische und mechanische Schadigung. Wahrend die Genauigkeit der mit dieser Techni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b754f73a4f35383b990e59f61318f32
https://doi.org/10.1002/phbl.19990550611
https://doi.org/10.1002/phbl.19990550611
Autor:
Andreas Ostendorf, Carsten Momma, Stefan Nolte, G. Kamlage, F. von Alvensleben, Herbert Welling, Carsten Fallnich
Publikováno v:
Applied Physics A: Materials Science & Processing. 68:563-567
A strong influence of the polarization of the laser radiation on the geometry of laser-machined microdrillings has been observed for ultrashort pulses. For drillings with a certain aspect ratio, reflections at the hole walls take place, leading to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3d470c975049a907d68f42b5c2eb97a
https://doi.org/10.1007/s003390050941
https://doi.org/10.1007/s003390050941
Publikováno v:
Applied Physics A: Materials Science & Processing. 67:517-520
“The original publication is available at www.springerlink.com”. Copyright Springer. DOI: 10.1007/s003390050814 [Full text of this article is not available in the UHRA]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c82f7f0d101e1e8fc30df2b5f6cb6aac
https://doi.org/10.1007/s003390050814
https://doi.org/10.1007/s003390050814
Publikováno v:
Applied Physics A Materials Science & Processing. 63:109-115
Laser ablation of solid targets by 0.2–5000 ps Ti: Sapphire laser pulses is studied. Theoretical models and qualitative explanations of experimental results are presented. Advantages of femtosecond lasers for precise material processing are discuss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2688f14459b5859853855920650a773d
https://doi.org/10.1007/bf01567637
https://doi.org/10.1007/bf01567637
Autor:
Boris N. Chichkov, Stefan Nolte, Carsten Momma, B. Wellegehausen, Andreas Tünnermann, Herbert Welling, Ferdinand von Alvensleben
Publikováno v:
Optics Communications. 129:134-142
Laser ablation of solid targets by Ti:sapphire laser radiation is studied. The solid targets are irradiated by 0.2–5000 ps laser pulses in the intensity range of 10 9 − 5 × 10 16 W cm 2 . Dependences of the ablation depth on the laser pulse ener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92835ddd32d09d4dbd14100da356f543
https://doi.org/10.1016/0030-4018(96)00250-7
https://doi.org/10.1016/0030-4018(96)00250-7
Publikováno v:
Optical and Quantum Electronics
Starting from intense short-pulse KrF (248 nm, 25 mJ, 400 fs), ArF (193 nm, 10 mJ, sim1 ps), and Ti:sapphire (810 nm, 100 mJ, 150 fs) laser systems, schemes for the generation of fixed-frequency and tunable VUV and XUV radiation by nonlinear optical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88f2919e4d5cd9218581564cfeb02a13
https://doi.org/10.1007/bf00385858
https://doi.org/10.1007/bf00385858
Publikováno v:
Applied Physics B: Lasers and Optics
24 infrared laser lines on atomic and ionic transitions have been observed in recombining plasmas by vaporizing and ionizing Cd, Pb, Sn, Zn, and Mg with low energy Nd:YAG or excimer pump-lasers. For operation and optimization of the recombination las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a4f33aa8d342cbf6ae4e01cf31a0c28
https://doi.org/10.1007/bf00325509
https://doi.org/10.1007/bf00325509