M.V. Yurkov

Characterization of free-electron laser third harmonic radiation at FLASH

Mahdi M. Bidhendi, Ivette J. Bermúdez Macias, R. Ivanov, M.V. Yurkov et autres

The Free-electron LASer in Hamburg - FLASH - generates intense ultrashort pulses with femtosecond duration in the range of 3.3 - 90 nm in the fundamental. In addition, higher harmonic contributions are always present in the spectral distribution, extending this range to …

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Opportunities for gas-phase science at short-wavelength free-electron lasers with undulator-based polarization control

Markus Ilchen, E. Allaria, Primož Rebernik Ribič, H.-D. Nuhn et autres

Free-electron lasers (FELs) are the world's most brilliant light sources with rapidly evolving technological capabilities in terms of ultrabright and ultrashort pulses over a large range of photon energies. Their revolutionary and innovative developments have opened new fields of science regarding nonlinear …

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THz SASE FEL at PITZ: lasing at a wavelength of 100 μm

M. Krasilnikov, Zakaria Aboulbanine, Govinda Adhikari, Namra Aftab et autres

Abstract Development of an accelerator-based tunable THz source prototype for pump-probe experiments at the European XFEL is ongoing at the Photo Injector Test facility at DESY in Zeuthen (PITZ). The proof-of-principle experiments on the THz SASE FEL are performed utilizing the LCLS-I …

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Photon Diagnostics for the High-Gain THz FEL at PITZ

Prach Boonpornprasert, Namra Aftab, Z. Amirkhanyan, Georgi Georgiev et autres

Abstract Research and development of an accelerator-based THz source prototype for pump-probe experiments at the European XFEL are ongoing at the Photo Injector Test Facility at DESY in Zeuthen (PITZ). Proof-of-principle experiments have been performed to generate a high-gain THz Free-electron Laser …

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Opportunities for Gas-Phase Science at Short-Wavelength Free-Electron Lasers with Undulator-Based Polarization Control

Markus Ilchen, E. Allaria, Primož Rebernik Ribič, H.-D. Nuhn et autres

Free-electron lasers (FELs) are the world's most brilliant light sources with rapidly evolving technological capabilities in terms of ultrabright and ultrashort pulses over a large range of accessible photon energies. Their revolutionary and innovative developments have opened new fields of science regarding …

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Impact of real mirror profiles inside a split-and-delay unit on the spatial intensity profile in pump/probe experiments at the European XFEL

Victor Kärcher, Sebastian Roling, Liubov Samoylova, Alexey V. Buzmakov et autres

For the High-Energy-Density (HED) beamline at the SASE2 undulator of the European XFEL, a hard X-ray split-and-delay unit (SDU) has been built enabling time-resolved pump/probe experiments with photon energies between 5 keV and 24 keV. The optical layout of the SDU is …

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Author Correction: A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator

Winfried Decking, Suren Abeghyan, P. Abramian, A. Abramsky et autres

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A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator

Winfried Decking, Suren Abeghyan, P. Abramian, A. Abramsky et autres

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Accelerator-based tunable THz source for pump-and-probe experiments at the European X-ray Free-Electron Laser facility

H. Shaker, Holger Huck, Igor Isaev, Christian Koschitzki et autres

There is a high demand for intense THz sources since “many excitation mechanisms of matter resonate in the terahertz regime” especially for condensed matters. “Accelerator-based THz sources provide the wide tunability together with high intensity and repetition rates beyond 100 kHz, that …

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Harmonic lasing in X-ray FELs: theory and experiment

Evgeni Schneidmiller, M.V. Yurkov

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Simulations of ultrafast x–ray laser experiments

Carsten Fortmann-Grote, А. А. Андреев, Karen Appel, JACKLYNNE FEITOSA CASTELO BRANCO et autres

Simulations of experiments at modern light sources, such as optical laser laboratories, synchrotrons, and free electron lasers, become increasingly important for the successful preparation, execution, and analysis of these experiments investigating ever more complex physical systems, e.g. biomolecules, complex materials, and ultra–short …

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Transverse coherence and pointing stability of the radiation from x-ray free electron lasers

E. A. Schneidmiller, M.V. Yurkov

The radiation from SASE FEL has always limited value of the degree of transverse coherence. When transverse size of the electron beam significantly exceeds diffraction limit, the mode competition effect does not provide the selection of the ground mode, and spatial coherence …

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