TY  - CHAP
A1  - Wittrock, Ulrich
A1  - Welp, Petra
T1  - Adaptive laser resonator control with deformable MOEMS mirrors
T2  - MEMS/MOEMS Components and Their Applications III, Proc. SPIE
N2  - Adaptive laser resonators with deformable MOEMS mirrors under closed-loop control are discussed and experimental results are presented. The requirements for deformable mirrors and for closed-loop control systems of these mirrors are analyzed. Several deformable mirrors have been characterized and the results are presented. Currently available membrane mirrors deform under laser load and need further development before they can be used for aberration correction of solid state lasers above some tens of Watts. Nevertheless, the results are encouraging and the requirements are within reach of currently available technology. Finally, we demonstrate an Nd.YVO4-laser with a closed-loop adaptive resonator and more than 6 W of output power. The closed-loop system was able to compensate artificially introduced aberrations from a phase plate.
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-6537
VL  - 6113
SP  - 61130C
PB  - SPIE
ER  - 
TY  - CHAP
A1  - Heuck, Hans-Martin
A1  - Wittrock, Ulrich
A1  - Fils, Jérome
A1  - Borneis, Stefan
A1  - Witte, Klaus
A1  - Eisenbart, Udo
A1  - Javorkova, Dasa
A1  - Bagnoud, Vincent
A1  - Götte, Stefan
A1  - Tauschwitz, Andreas
A1  - Onkels, Eckehard
T1  - Adaptive optics at the PHELIX laser
T2  - Adaptive Optics for Laser Systems and Other Applications, Proc. SPIE
N2  - GSI Darmstadt currently builds a high-energy petawatt Nd:glass laser system, called PHELIX (Petawatt High-Energy Laser for Heavy-Ion Experiments). PHELIX will offer the world-wide unique combination of a high current, high-energy heavy-ion beam with an intense laser beam. Aberrations due to the beam transport and due to the amplification process limit the focusability and the intensity at the target. We have investigated the aberrations of the different amplification stages. The pre-amplifier stage consists of three rod-amplifiers which cause mainly defocus, but also a small part of coma and astigmatism. The main amplifier consists of five disk amplifiers with a clear aperture of 315 mm. These large disk-amplifiers cause pump-shot aberrations which occur instantly. After a shot, the disk amplifiers need a cooling time of several hours to relax to their initial state. This limits the repetition rate and causes long-term aberrations. We will present first measurements of the pump-shot and long-term aberrations caused by the pre- and the main amplifier in a single-pass configuration. In this context, we will present the adaptive optics system which is implemented in the PHELIX beam line and discuss its capability to compensate for the pump-shot and long-term aberrations.
Y1  - 2007
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:836-opus-6215
VL  - 6584
SP  - 658402
PB  - SPIE
ER  - 
TY  - CHAP
A1  - Carl, Ann-Kathrin
A1  - Hochmann, David
T1  - Aktueller Stand der regulatorischen Vorgaben für 3D-gedruckte Sonderanfertigungen in Europa
T2  - Beitrag zur OTWorld 2022
Y1  - 2022
UR  - https://www.ot-world.com/files/otworld/congress/102771.pdf
ER  - 
TY  - CHAP
A1  - Backhaus, C.
A1  - Jubt, K. H.
A1  - Felten, C.
T1  - Analyse kniegelenksbelastender Tätigkeiten beim Be- und Entladen von Flugzeugen
T2  - Beitrag zum 54. Kongress der Gesellschaft für Arbeitswissenschaft
Y1  - 2008
SP  - 561
EP  - 564
PB  - GfA-Press
CY  - Dortmund
ER  - 
TY  - CHAP
A1  - König, S.
A1  - Klebsch, L.
A1  - Ostermann, R.
A1  - Hinricher, N.
A1  - Kaluza, M.
A1  - Walter, S.
A1  - Heemels, H.
A1  - Backhaus, C.
T1  - Anwendbarkeit von Augmented Reality Systemen für eine unterstützte Fehlerbehebung an ECMO/ECLS-Systemen auf Intensivstationen
T2  - Beitrag zur 50. Internationalen Jahrestagung der Deutschen Gesellschaft für Kardiotechnik
Y1  - 2021
ER  - 
TY  - CHAP
A1  - Louw, J.
A1  - Schröer, C.
A1  - Hinricher, N.
A1  - Ibenthal, E.
A1  - Müller, L.
A1  - Backhaus, C.
T1  - Anwenderakzeptanz von Hämodialysegeräten
T2  - Beitrag zum 68. Kongress der Gesellschaft für Arbeitswissenschaft
Y1  - 2022
SN  - 978-3-936804-31-7
SP  - C.9.5
PB  - GfA-Press
CY  - St. Augustin
ER  - 
TY  - CHAP
A1  - Backhaus, C.
A1  - Baars, S.
A1  - Jubt, K. H.
T1  - Arbeitsanalyse im Möbelspeditionsgewerbe
T2  - Beitrag zum 4. DGUV-Fachgespräch Ergonomie. St. Augustin: IFA-Report 6/2011
Y1  - 2011
SP  - 141
EP  - 147
ER  - 
TY  - CHAP
A1  - Backhaus, C.
A1  - Jubt, K. H.
A1  - Felten, C.
A1  - Friesdorf, W.
T1  - Arbeitsanalyse in der Entsorgungswirtschaft
T2  - Beitrag zum 54. Kongress der Gesellschaft für Arbeitswissenschaft
Y1  - 2008
SP  - 617
EP  - 620
ER  - 
TY  - CHAP
A1  - Ibenthal, E.
A1  - Kehmann, M.
A1  - Backhaus, C.
T1  - Arbeitswissenschaftliche Analyse zum Verhalten von Menschen mit Demenz in stationären Pflegeeinrichtungen unter Einfluss personalisierter Musik
T2  - Beitrag zum 67. Kongress der Gesellschaft für Arbeitswissenschaft
Y1  - 2021
SN  - 978-3-936804-29-4
SP  - C.3.1
PB  - GfA-Press
CY  - Dortmund
ER  - 
TY  - CHAP
A1  - Lüttecke, Martin
A1  - Riedl, Alexander
T1  - Auswirkungen der neuen TA Luft auf Stahl-Email-Flanschverbindungen
T2  - XXI. Dichtungskolloquium
Y1  - 2019
SN  - 978-3-947263-12-7
SP  - 223
EP  - 233
PB  - FH Münster
CY  - Münster
ER  -