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Showing 1 to 12 of 29 entries
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400W Yb:YAG Innoslab fs-Amplifier.

Optics express

Russbueldt P, Mans T, Rotarius G, Weitenberg J, Hoffmann HD, Poprawe R.
PMID: 19654625
Opt Express. 2009 Jul 20;17(15):12230-45. doi: 10.1364/oe.17.012230.

The Innoslab design, already established for neodymium doped laser crystals, was applied to ytterbium doped laser materials. Recent progresses in brightness of high power diode lasers facilitate efficient pumping of quasi-three-level laser materials. Innoslab amplifiers are compared to competing...

Single-pass high-harmonic generation at 20.8 MHz repetition rate.

Optics letters

Vernaleken A, Weitenberg J, Sartorius T, Russbueldt P, Schneider W, Stebbings SL, Kling MF, Hommelhoff P, Hoffmann HD, Poprawe R, Krausz F, Hänsch TW, Udem T.
PMID: 21886233
Opt Lett. 2011 Sep 01;36(17):3428-30. doi: 10.1364/OL.36.003428.

We report on single-pass high-harmonic generation (HHG) with amplified driving laser pulses at a repetition rate of 20.8 MHz. An Yb:YAG Innoslab amplifier system provides 35 fs pulses with 20 W average power at 1030 nm after external pulse...

Diode-pumped Q-switched Alexandrite laser in single longitudinal mode operation with Watt-level output power.

Optics letters

Munk A, Strotkamp M, Walochnik M, Jungbluth B, Traub M, Hoffmann HD, Poprawe R, Höffner J, Lübken FJ.
PMID: 30439878
Opt Lett. 2018 Nov 15;43(22):5492-5495. doi: 10.1364/OL.43.005492.

We present significantly improved performance data of a diode-pumped

The role of autophagy in the midgut epithelium of Parachela (Tardigrada).

Zoomorphology

Rost-Roszkowska MM, Janelt K, Poprawa I.
PMID: 30524174
Zoomorphology. 2018;137(4):501-509. doi: 10.1007/s00435-018-0407-x. Epub 2018 May 10.

The process of cell death has been detected in the midgut epithelium of four tardigrade species which belong to Parachela:

In situ investigation of production processes in a large chamber scanning electron microscope.

Ultramicroscopy

Aretz A, Ehle L, Haeusler A, Bobzin K, Öte M, Wiesner S, Schmidt A, Gillner A, Poprawe R, Mayer J.
PMID: 30075368
Ultramicroscopy. 2018 Oct;193:151-158. doi: 10.1016/j.ultramic.2018.07.002. Epub 2018 Jul 04.

A large-chamber scanning electron microscope (LC-SEM) provides an ideal platform for the installation of large-scale in situ experiments. Our LC-SEM has internal chamber dimensions of 1,2 × 1,3 × 1,4 m

The use of patient-reported outcomes in routine cancer care: preliminary insights from a multinational scoping survey of oncology practitioners.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer

Cheung YT, Chan A, Charalambous A, Darling HS, Eng L, Grech L, van den Hurk CJG, Kirk D, Mitchell SA, Poprawski D, Rammant E, Ramsey I, Fitch MI, Chan RJ.
PMID: 34524527
Support Care Cancer. 2022 Feb;30(2):1427-1439. doi: 10.1007/s00520-021-06545-7. Epub 2021 Sep 15.

BACKGROUND: There exists scant evidence on the optimal approaches to integrating patient-reported outcomes (PROs) in clinical practice. This study gathered oncology practitioners' experiences with implementing PROs in cancer care.METHODS: Between December 2019 and June 2020, we surveyed practitioners who...

Teleology first: Goals before knowledge and belief.

The Behavioral and brain sciences

Schlicht T, Brandl JL, Esken F, Glock HJ, Newen A, Perner J, Poprawe F, Schmidt E, Strasser A, Wolf J.
PMID: 34796803
Behav Brain Sci. 2021 Nov 19;44:e169. doi: 10.1017/S0140525X20001533.

Comparing knowledge with belief can go wrong in two dimensions: If the authors employ a wider notion of knowledge, then they do not compare like with like because they assume a narrow notion of belief. If they employ only...

The use of patient-reported outcomes in routine cancer care: preliminary insights from a multinational scoping survey of oncology practitioners.

Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer

Cheung YT, Chan A, Charalambous A, Darling HS, Eng L, Grech L, van den Hurk CJG, Kirk D, Mitchell SA, Poprawski D, Rammant E, Ramsey I, Fitch MI, Chan RJ.
PMID: 34524527
Support Care Cancer. 2022 Feb;30(2):1427-1439. doi: 10.1007/s00520-021-06545-7. Epub 2021 Sep 15.

BACKGROUND: There exists scant evidence on the optimal approaches to integrating patient-reported outcomes (PROs) in clinical practice. This study gathered oncology practitioners' experiences with implementing PROs in cancer care.METHODS: Between December 2019 and June 2020, we surveyed practitioners who...

Carbon Nanotubes Enabled Laser 3D Printing of High-Performance Titanium with Highly Concentrated Reinforcement.

iScience

Gu D, Chen H, Dai D, Ma C, Zhang H, Lin K, Xi L, Zhao T, Hong C, Gasser A, Poprawe R.
PMID: 32916629
iScience. 2020 Aug 25;23(9):101498. doi: 10.1016/j.isci.2020.101498. Epub 2020 Aug 25.

Zero- to two-dimensional nanomaterials have been incorporated into metal-matrices to improve the strength of metals, but challengingly, high-volume-fraction nanomaterials are difficult to disperse uniformly in metal matrices, severely degrading the ductility of conventionally processed metals. Here, a considerably dense...

Material-structure-performance integrated laser-metal additive manufacturing.

Science (New York, N.Y.)

Gu D, Shi X, Poprawe R, Bourell DL, Setchi R, Zhu J.
PMID: 34045326
Science. 2021 May 28;372(6545). doi: 10.1126/science.abg1487.

Laser-metal additive manufacturing capabilities have advanced from single-material printing to multimaterial/multifunctional design and manufacturing. Material-structure-performance integrated additive manufacturing (MSPI-AM) represents a path toward the integral manufacturing of end-use components with innovative structures and multimaterial layouts to meet the increasing...

Size-driven ferroelectric-paraelectric phase transition in TGS nanocomposites.

Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology

Cizman A, Antropova T, Anfimova I, Drozdova I, Rysiakiewicz-Pasek E, Radojewska EB, Poprawski R.
PMID: 23990751
J Nanopart Res. 2013;15:1807. doi: 10.1007/s11051-013-1807-y. Epub 2013 Jul 03.

Dielectric properties of porous glass nanocomposites with TGS crystals embedded into six porous matrices with average pore size from 5 to 312 nm were investigated in the temperature range from 280 to 380 K at selected frequencies. The results...

Dynamics and stability of a laser system with second-order nonlinearity.

Optics letters

Falter S, Du KM, Liao Y, Quade M, Zhang J, Loosen P, Poprawe R.
PMID: 18185606
Opt Lett. 1997 May 01;22(9):609-11. doi: 10.1364/ol.22.000609.

We use a multimode rate-equation model to investigate the stability of a laser system with second-order nonlinearity and compare the results with the literature on intracavity frequency-doubled lasers. The emphasis is on the Hopf bifurcation between the asymptotically stable...

Showing 1 to 12 of 29 entries