Search Results - "Caleman, C."
-
1
Attosecond formation of charge-transfer-to-solvent states of aqueous ions probed using the core-hole-clock technique
Published in Nature communications (16-10-2024)“…Charge transfer between molecules lies at the heart of many chemical processes. Here, we focus on the ultrafast electron dynamics associated with the formation…”
Get full text
Journal Article -
2
Radiation damage by extensive local water ionization from two-step electron-transfer-mediated decay of solvated ions
Published in Nature chemistry (01-10-2023)“…Biomolecular radiation damage is largely mediated by radicals and low-energy electrons formed by water ionization rather than by direct ionization of…”
Get full text
Journal Article -
3
Surface behavior of amphiphiles in aqueous solution: a comparison between different pentanol isomers
Published in Physical chemistry chemical physics : PCCP (01-01-2015)“…Position isomerism is ubiquitous in atmospheric oxidation reactions. Therefore, we have compared surface-active oxygenated amphiphilic isomers (1- and…”
Get more information
Journal Article -
4
Is radiation damage the limiting factor in high-resolution single particle imaging with X-ray free-electron lasers?
Published in Structural dynamics (Melville, N.Y.) (01-07-2019)“…The prospect of single particle imaging with atomic resolution is one of the scientific drivers for the development of X-ray free-electron lasers. The…”
Get full text
Journal Article -
5
Femtosecond phase-transition in hard x-ray excited bismuth
Published in Scientific reports (24-01-2019)“…The evolution of bismuth crystal structure upon excitation of its A 1g phonon has been intensely studied with short pulse optical lasers. Here we present the…”
Get full text
Journal Article -
6
Characteristics of focused soft X-ray free-electron laser beam determined by ablation of organic molecular solids
Published in Optics express (14-05-2007)“…A linear accelerator based source of coherent radiation, FLASH (Free-electron LASer in Hamburg) provides ultra-intense femtosecond radiation pulses at…”
Get full text
Journal Article -
7
Wavelength dependence of the damage threshold of inorganic materials under extreme-ultraviolet free-electron-laser irradiation
Published in Applied physics letters (14-09-2009)“…We exposed bulk SiC and films of SiC and B 4 C to single 25 fs long free-electron-laser pulses with wavelengths between 13.5 and 32 nm. The materials are…”
Get full text
Journal Article -
8
Electronic damage in S atoms in a native protein crystal induced by an intense X-ray free-electron laser pulse
Published in Structural dynamics (Melville, N.Y.) (01-07-2015)“…Current hard X-ray free-electron laser (XFEL) sources can deliver doses to biological macromolecules well exceeding 1 GGy, in timescales of a few tens of…”
Get full text
Journal Article -
9
Radiation damage in biological material: Electronic properties and electron impact ionization in urea
Published in Europhysics letters (01-01-2009)“…Radiation damage is an unavoidable process when performing structural investigations of biological macromolecules with X-rays. In crystallography this process…”
Get full text
Journal Article -
10
Radiation damage in biological material: Electronic properties and electron impact ionization in urea
Published in Europhysics letters (01-10-2009)Get full text
Journal Article -
11
Studies of resolidification of non-thermally molten InSb using time-resolved X-ray diffraction
Published in Applied physics. A, Materials science & processing (01-10-2005)“…We have used time-resolved X-ray diffraction to monitor the resolidification process of molten InSb. Melting was induced by an ultra-short laser pulse and the…”
Get full text
Journal Article -
12
Damage threshold of inorganic solids under free-electron-laser irradiation at 32.5nm wavelength
Published in Applied physics letters (23-04-2007)“…Samples of B4C, amorphous C, chemical-vapor-deposition-diamond C, Si, and SiC were exposed to single 25fs long pulses of 32.5nm free-electron-laser radiation…”
Get full text
Journal Article -
13
Saturated ablation in metal hydrides and acceleration of protons and deuterons to keV energies with a soft-x-ray laser
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (2011)“…Studies of materials under extreme conditions have relevance to a broad area of research, including planetary physics, fusion research, materials science, and…”
Get full text
Journal Article -
14
Atomic-Scale Visualization of Inertial Dynamics
Published in Science (American Association for the Advancement of Science) (15-04-2005)“…The motion of atoms on interatomic potential energy surfaces is fundamental to the dynamics of liquids and solids. An accelerator-based source of femtosecond…”
Get full text
Journal Article -
15
Clocking femtosecond X rays
Published in Physical review letters (25-03-2005)“…Linear-accelerator-based sources will revolutionize ultrafast x-ray science due to their unprecedented brightness and short pulse duration. However,…”
Get full text
Journal Article -
16
Hit detection in serial femtosecond crystallography using X-ray spectroscopy of plasma emission
Published in IUCrJ (01-11-2017)“…Serial femtosecond crystallography is an emerging and promising method for determining protein structures, making use of the ultrafast and bright X-ray pulses…”
Get full text
Journal Article -
17
Damage threshold of inorganic solids under free-electron-laser irradiation at 32.5 nm wavelength
Published in Applied physics letters (23-04-2007)“…Samples of B 4 C , amorphous C, chemical-vapor-deposition-diamond C, Si, and SiC were exposed to single 25 fs long pulses of 32.5 nm free-electron-laser…”
Get full text
Journal Article -
18
Auger electron cascades in water and ice
Published in Chemical physics (19-04-2004)“…Secondary electron cascades can induce significant ionisation in condensed matter due to electron–atom collisions. This is of interest in the context of…”
Get full text
Journal Article -
19
Observation of structural anisotropy and the onset of liquidlike motion during the nonthermal melting of InSb
Published in Physical review letters (16-09-2005)“…The melting dynamics of laser excited InSb have been studied with femtosecond x-ray diffraction. These measurements observe the delayed onset of diffusive…”
Get full text
Journal Article -
20
TOF-OFF: A method for determining focal positions in tightly focused free-electron laser experiments by measurement of ejected ions
Published in High energy density physics (01-12-2011)“…Pulse intensities greater than 10 17 Watt/cm 2 were reached at the FLASH soft X-ray laser in Hamburg, Germany, using an off-axis parabolic mirror to focus…”
Get full text
Journal Article