Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Elke Plonjes"'
Autor:
Matthias Dreimann, Frank Wahlert, Sebastian Roling, Rolf Treusch, Elke Plönjes, Helmut Zacharias
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 5, Pp 1168-1178 (2024)
The split-and-delay unit (SDU) at FLASH2 will be upgraded to enable the simultaneous operation of two temporally, spatially and spectrally separated probe beams when the free-electron laser undulators are operated in a two-color scheme. By means of s
Externí odkaz:
https://doaj.org/article/7d2619ff548c41098377bc2d34206d00
Autor:
Matthias Dreimann, Frank Wahlert, Dennis Eckermann, Felix Rosenthal, Sebastian Roling, Tobias Reiker, Marion Kuhlmann, Sven Toleikis, Maciej Brachmanski, Rolf Treusch, Elke Plönjes, Björn Siemer, Helmut Zacharias
Publikováno v:
Journal of Synchrotron Radiation, Vol 30, Iss 2, Pp 479-489 (2023)
A split-and-delay unit for the extreme ultraviolet and soft X-ray spectral regions has been built which enables time-resolved experiments at beamlines FL23 and FL24 at the Free-electron LASer in Hamburg (FLASH). Geometric wavefront splitting at a sha
Externí odkaz:
https://doaj.org/article/2f356bc6b06b4639a52561cf52040a0b
Autor:
Tommaso Mazza, Thomas M. Baumann, Rebecca Boll, Alberto De Fanis, Patrik Grychtol, Markus Ilchen, Jacobo Montaño, Valerija Music, Yevheniy Ovcharenko, Nils Rennhack, Daniel E. Rivas, Aljoscha Rörig, Philipp Schmidt, Sergey Usenko, Pawel Ziołkowski, Daniele La Civita, Maurizio Vannoni, Harald Sinn, Barbara Keitel, Elke Plönjes, Ulf Fini Jastrow, Andrey Sorokin, Kai Tiedtke, Klaus Mann, Bernd Schäfer, Niels Breckwoldt, Sang-Kil Son, Michael Meyer
Publikováno v:
Journal of Synchrotron Radiation, Vol 30, Iss 2, Pp 457-467 (2023)
The Small Quantum Systems instrument is one of the six operating instruments of the European XFEL, dedicated to the atomic, molecular and cluster physics communities. The instrument started its user operation at the end of 2018 after a commissioning
Externí odkaz:
https://doaj.org/article/af135f7f27904d948a443675476b878c
Autor:
Konstantin Kharitonov, Masoud Mehrjoo, Mabel Ruiz-Lopez, Barbara Keitel, Svea Kreis, Seung-gi Gang, Rui Pan, Alessandro Marras, Jonathan Correa, Cornelia B. Wunderer, Elke Plönjes
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract In this work, single-shot ptychography was adapted to the XUV range and, as a proof of concept, performed at the free-electron laser FLASH at DESY to obtain a high-resolution reconstruction of a test sample. Ptychography is a coherent diffra
Externí odkaz:
https://doaj.org/article/9fff5033530d4824bd462ed4d35d1549
Realizing Attosecond Core-Level X-ray Spectroscopy for the Investigation of Condensed Matter Systems
Autor:
Adam M. Summers, Stefano Severino, Maurizio Reduzzi, Themistoklis P. H. Sidiropoulos, Daniel E. Rivas, Nicola Di Palo, Hung-Wei Sun, Ying-Hao Chien, Iker León, Bárbara Buades, Seth L. Cousin, Stephan M. Teichmann, Tobias Mey, Klaus Mann, Barbara Keitel, Elke Plönjes, Dmitri K. Efetov, Heinrich Schwoerer, Jens Biegert
Publikováno v:
Ultrafast Science, Vol 3 (2023)
Unraveling the exact nature of nonequilibrium and correlated interactions is paramount for continued progress in many areas of condensed matter science. Such insight is a prerequisite to develop an engineered approach for smart materials with targete
Externí odkaz:
https://doaj.org/article/8ad9f21cdb1243078968b6b14ab0ed97
Autor:
Mehdi Ravandeh, Masoud Mehrjoo, Konstantin Kharitonov, Jan Schäfer, Antje Quade, Bruno Honnorat, Mabel Ruiz-Lopez, Barbara Keitel, Svea Kreis, Rui Pan, Seung-gi Gang, Kristian Wende, Elke Plönjes
Publikováno v:
Polymers, Vol 14, Iss 13, p 2528 (2022)
Polyethylene terephthalate (PET) is a thermoplastic polyester with numerous applications in industry. However, it requires surface modification on an industrial scale for printing and coating processes and plasma treatment is one of the most commonly
Externí odkaz:
https://doaj.org/article/bb498ea742b54f83a99d05b0faf39608
Autor:
Mabel Ruiz-Lopez, Masoud Mehrjoo, Barbara Keitel, Elke Plönjes, Domenico Alj, Guillaume Dovillaire, Lu Li, Philippe Zeitoun
Publikováno v:
Sensors, Vol 20, Iss 22, p 6426 (2020)
Wavefront analysis is a fast and reliable technique for the alignment and characterization of optics in the visible, but also in the extreme ultraviolet (EUV) and X-ray regions. However, the technique poses a number of challenges when used for optica
Externí odkaz:
https://doaj.org/article/efb840cc52c84e29b0de919cdf83871b
Publikováno v:
AIAA Journal. 41:465-469
An experimental study of shock modie cation in an M =2:5 supersonic e ow of nonequilibrium plasma over a cone is discussed. The experiments are conducted in a nonequilibrium plasma supersonic wind tunnel. Recent experiments at the Ohio State Universi
Publikováno v:
Chemical Physics. 279:43-54
The paper discusses experiments on vibration-to-electronic energy transfer in CO laser pumped CO–Ar and CO–N2 plasmas. Ionization in these strongly nonequilibrium plasmas occurs by an associative mechanism, in collisions of two highly vibrational
Autor:
Hamish L. Fraser, J. William Rich, Elke Plonjes, Vish V. Subramaniam, Peter Palm, G. Babu Viswanathan, Igor Adamovich, Walter R. Lempert
Publikováno v:
Chemical Physics Letters. 352:342-347
Single-walled carbon nanotubes (SWNTs) are synthesized in a gas-phase non-equilibrium plasma process.The carbon producing CO disproportionation reaction is driven very efficiently in a flow reactor, in which extreme disequilibrium between the vibrati