Eur.XFEL

Latest additions:
2018-02-02
09:02
DBCoverage [PUBDB-2018-00999] Journal Article
; ; ; et al
Diffraction based Hanbury Brown and Twiss interferometry at a hard x-ray free-electron laser
ddc:000
X-ray free-electron lasers (XFELs) provide extremely bright and highly spatially coherent x-rayradiation with femtosecond pulse duration. Currently, they are widely used in biology and materialscience. [...]
Restricted: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-23
10:34
[PUBDB-2018-00754] Journal Article
; ; ; et al
Transferring the entatic-state principle to copper photochemistry
Nature chemistry 10, 355 – 362 (2018) [10.1038/nchem.2916]  GO
ddc:540
The entatic state denotes a distorted coordination geometry of a complex from its typical arrangement that generates an improvement to its function. The entatic-state principle has been observed to apply to copper electron-transfer proteins and it results in a lowering of the reorganization energy of the electron-transfer process. [...]
Restricted: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-12
10:19
[PUBDB-2018-00592] Journal Article
; ; ; et al
Materials for x-ray refractive lenses minimizing wavefront distortions
MRS bulletin 42(6), 430 - 436 (2017) [10.1557/mrs.2017.117]  GO
ddc:670
Refraction through curved surfaces, reflection from curved mirrors in grazing incidence, and diffraction from Fresnel zone plates are key hard x-ray focusing mechanisms. In this article, we present materials used for refractive x-ray lenses. [...]
Restricted: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-11
13:18
OpenAccess [PUBDB-2018-00484] Journal Article
; ; ; et al
Circular Dichroism in Multiphoton Ionization of Resonantly Excited $He^{+}$ Ions
ddc:550
Intense, circularly polarized extreme-ultraviolet and near-infrared (NIR) laser pulses are combined to double ionize atomic helium via the oriented intermediate He+(3p) resonance state. Applying angle-resolved electron spectroscopy, we find a large photon helicity dependence of the spectrum and the angular distribution of the electrons ejected from the resonance by NIR multiphoton absorption. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-10
14:41
[PUBDB-2018-00376] Journal Article
; ; ; et al
Fabrication of diamond diffraction gratings for experiments with intense hard x-rays
ddc:620
The demands on optical components to tolerate high radiation dose and manipulate hard x-ray beams that can fit the experiment requirements, are constantly increasing due to the advancements in the available x-ray sources. Here we have successfully fabricated the transmission type gratings using diamond, with structure sizes ranging from few tens of nanometres up to micrometres, and aspect ratio of up to 20. [...]
Fulltext: Download fulltextPDF Download fulltextPDF (PDFA); Restricted: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-09
10:44
OpenAccess [PUBDB-2018-00272] Journal Article
; ; ; et al
Ultrashort Free-Electron Laser X-ray Pulses
ddc:600
For the investigation of processes happening on the time scale of the motion of bound electrons, well-controlled X-ray pulses with durations in the few-femtosecond and even sub-femtosecond range are a necessary prerequisite. Novel free-electron lasers sources provide these ultrashort, high-brightness X-ray pulses, but their unique aspects open up concomitant challenges for their characterization on a suitable time scale [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-08
15:32
OpenAccess [PUBDB-2018-00266] Journal Article
; ; ; et al
Saturation of a Ce:$\mathrm{Y}_{3}\mathrm{Al}_{5}\mathrm{O}_{12}$ scintillator response to ultra-short pulses of extreme ultraviolet soft X-ray and X-ray laser radiation
ddc:620
Investigations of radioluminescence saturation in monocrystalline cerium doped yttrium aluminum garnet (Ce:YAG) exposed to intense extreme ultraviolet (XUV), soft X-ray and X-ray radiation delivered from three free-electron lasers are described in this article. The measurements were performed with wavelengths of 98, 25.6, 13.5 and 0.15 nm. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-05
13:44
OpenAccess [PUBDB-2018-00199] Journal Article
; ; ; et al
Photodissociation of Aligned $\mathrm{CH_3I}$ and $\mathrm{C_{6}H_{3}F_{2}I}$ Molecules Probed with Time-Resolved Coulomb Explosion Imaging by Site-Selective XUV Ionization
ddc:530
We explore time-resolved Coulomb explosion induced by intense, extreme ultraviolet (XUV) femtosecond pulses from a free-electron laser as a method to image photo-induced molecular dynamics in two molecules, iodomethane and 2,6-difluoroiodobenzene. At an excitation wavelength of 267 nm, the dominant reaction pathway in both molecules is neutral dissociation via cleavage of the carbon–iodine bond. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2018-01-03
17:18
OpenAccess [PUBDB-2018-00095] Contribution to a conference proceedings/Contribution to a book
; ; ; et al
MCP Based Detectors Installation in European XFEL
8th International Particle Accelerator Conference, IPAC17, Meeting locationCopenhagen, Denmark, 15 May 2017 - 19 May 20172017-05-152017-05-19 wepab132 (2017) [10.3204/PUBDB-2018-00095]  GO
An important task of the photon beam diagnostics at the European XFEL is providing reliable tools for measurements aiming at the search for and fine tuning of the FEL creating SASE process. Radiation detectors based on micro channel plates (MCP) will be use at the European XFEL. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext

Detailed record - Similar records
2017-12-20
15:10
OpenAccess [PUBDB-2017-13877] Journal Article
; ; ; et al
Observation of Reverse Saturable Absorption of an X-ray Laser
ddc:550
A nonlinear absorber in which the excited state absorption is larger than the ground state can undergo a process called reverse saturable absorption. It is a well-known phenomenon in laser physics in the optical regime, but is more difficult to generate in the x-ray regime, where fast nonradiative core electron transitions typically dominate the population kinetics during light matter interactions [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records