-
Article
Open AccessFull characterization of a phase-locked DUV double pulse generated in an all-reflective sha** setup working under grazing incidence in a broad spectral range
Controlling the temporal and spectral properties of ultrashort laser pulses in the visible and near-infrared spectral range by means of a femtosecond pulse-sha** device is a powerful tool with many applicati...
-
Article
Comparison of clinical presentation and laboratory values at admission between PCR-confirmed influenza A H1N1 infection and influenza-like disease, South-East Austria
Reliable and rapid diagnosis of influenza A H1N1 is essential to initiate the appropriate antiviral therapy and preventive measures. As PCR assays are time-consuming and rapid antigen tests have a limited sens...
-
Article
Time-and-energy resolved measurement of the cascaded Auger decay in krypton
The cascaded Auger decay following ionization or excitation with 94 eV soft-X-ray pulses from the 3d subshell in krypton has been energy-and-time-resolved for the first time. The decay time of the 4s ...
-
Article
Open AccessMonitoring Alzheimer Amyloid Peptide Aggregation by EPR
Plaques containing the aggregated β-Amyloid (Aβ) peptide in the brain are the main indicators of Alzheimer’s disease. Fibrils, the building blocks of plaques, can also be produced in vitro and consist of a reg...
-
Article
Attosecond spectroscopy in condensed matter
Electrons move in solids at very high speed — traversing atomic layers and interfaces within tens to hundreds of attoseconds (an attosecond is a billionth of a billionth of a second). These astonishingly brief...
-
Article
Attosecond real-time observation of electron tunnelling in atoms
Atoms exposed to intense light lose one or more electrons and become ions. In strong fields, the process is predicted to occur via tunnelling through the binding potential that is suppressed by the light field...
-
Article
Differential pressure characteristics of wood impregnated with compressed gases, liquids and supercritical fluids
Pressure difference characteristics at high pressure impregnation of two hardwood and three softwood species with CO2, ethanol, hexane and supercritical mixtures were analysed in a high pressure autoclave. The in...
-
Article
Comparison of 2-D ESR imaging techniques in two frequency ranges
Two-dimensional pulsed electron spin resonance (ESR) imaging was developed in two frequency ranges (radio frequency at 370 MHz and X-band at 9.5 GHz) using the Fourier imaging (FI) and filtered back projection...
-
Article
Atomic transient recorder
In Bohr's model of the hydrogen atom, the electron takes about 150 attoseconds (1 as = 10-18 s) to orbit around the proton, defining the characteristic timescale for dynamics in the electronic shell of atoms. Rec...
-
Chapter
Time-Resolved Inner Shell Spectroscopy with Sub-fs EUV Pulses
Ultrashort high harmonics are applied for a time-domain tracking of decaying atomic inner-shell vacancies. The novel EUV-pump / laser-probe scheme utilizes the delay-dependent momentum exchange between photoem...
-
Chapter
Reproducible Generation and Measurement of Isolated Sub-fs XUV Pulses with Phase-Controlled Few-Cycle Light
We report on the use of intense phase-controlled few-cycle(5-fs @ 750 nm)pulses for the reproducible generation of high-order-harmonic-like XUV radiation near 100 eV and for measuring the temporal structure of...
-
Chapter
Multilayer EUV Optics for Applications of Ultrashort High Harmonic Pulses
Multilayers serve as tailored optical components for guiding, focussing, and monochromatization of high harmonics. A single harmonic order can be selected without pulse broadening thus enabling time-resolved p...
-
Article
Time-resolved atomic inner-shell spectroscopy
The characteristic time constants of the relaxation dynamics of core-excited atoms have hitherto been inferred from the linewidths of electronic transitions measured by continuous-wave extreme ultraviolet or X...
-
Article
Sub-femtosecond X-ray pulse generation and measurement
We report the generation and measurement of isolated soft-X-ray pulses (λX= 14 nm) with a duration of τX=650±150 attoseconds (as) by using few-cycle intense visible/near-infrared (λ0= 750 nm) laser pulses. For th...
-
Article
Attosecond metrology
The generation of ultrashort pulses is a key to exploring the dynamic behaviour of matter on ever-shorter timescales. Recent developments have pushed the duration of laser pulses close to its natural limit—the...
-
Article
Few-cycle-driven XUV laser harmonics: generation and focusing
We have investigated the use of sub-10-fs near-infrared laser pulses to generate high-order harmonic radiation efficiently in the wavelength region between 30 to 10 nm. The ultrashort rise time of the driver p...
-
Article
A second synthesis ofD-apio-β-D-furanosyl maleimide as a structural analogue of showdomycin
Apioshowdomycin (3-(D-apio-β-D-furanosyl)-1H-pyrrole-2,5-dione,2) has been prepared as an analogue of the C-nucleoside showdomycin (1) in seven steps, starting from 2,3-O-isopropylidene-D-apio-D-furanose (8). The...
-
Article
Angle- and spin-resolved photoelectron spectroscopy in rotationally resolved photoionization of HI
The method of angle- and spin-resolved photoelectron spectroscopy has been used in combination with a laser based source of vacuum ultraviolet (VUV) radiation to study the photoionization dynamics of the HI mo...
-
Chapter and Conference Paper
Das Baukastensystem CARO zur Lösung von Problemen der Linearen Algebra auf einem Transputerring
Die Lineare Algebra ist ein wesentliches Hilfsmittel zur numerischen Lösung von mathematischen Problemen. Effiziente Routinen zu diesem Gebiet sind deshalb von besonderer Bedeutung. Innerhalb des Baukastensyst...
-
Article
Abstract
