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Physical Review Letters, ISSN 0031-9007, 2007, Volume 98, Issue 1, p. 013901
A theoretical investigation is presented that examines the wavelength scaling from near-visible (0.8 mu m) to midinfrared (2 mu m) of the photoelectron... 
MULTIPHOTON IONIZATION | THRESHOLD-IONIZATION | PHYSICS, MULTIDISCIPLINARY | HIGH-HARMONIC GENERATION | CYCLE | WAVE PACKETS | ELECTROMAGNETIC FIELDS | NUMERICAL SOLUTION | SCHROEDINGER EQUATION | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | APPROXIMATIONS | ELECTRONS | WAVELENGTHS | HARMONICS | QUANTUM MECHANICS | ARGON | RESCATTERING | TIME DEPENDENCE | HELIUM
Journal Article
Nature Physics, ISSN 1745-2473, 05/2009, Volume 5, Issue 5, pp. 335 - 338
Over the past thirty years, extensive studies of strong-field photoionization of atoms have revealed both quantum and classical aspects including... 
PHYSICS, MULTIDISCIPLINARY | ABOVE-THRESHOLD IONIZATION
Journal Article
Physical Review Letters, ISSN 0031-9007, 10/2018, Volume 121, Issue 14, p. 143902
We investigate the harmonic generation induced by the interaction of a laser field with a solid target. The harmonic spectra is composed of the contribution of... 
DYNAMICS | TIME | PHYSICS, MULTIDISCIPLINARY | ELECTRONS | Physics
Journal Article
Nature, ISSN 0028-0836, 07/2010, Volume 466, Issue 7302, pp. 56 - 61
An era of exploring the interactions of high-intensity, hard X-rays with matter has begun with the start-up of a hard-X-ray free-electron laser, the Linac... 
PHOTOIONIZATION | CROSS-SECTIONS | NEON | LASER | MULTIDISCIPLINARY SCIENCES | LIGHT | FLUORESCENCE YIELDS | IONIZATION | RADIATION | K-SHELL | SCATTERING | Atoms | Usage | Research | Properties | Free electron lasers | X-rays | Studies | Infrared radiation | X rays | Monte Carlo simulation | Femtosecond | Neon | Condensed matter | Fluence | Electronics | Photons | Coherent light
Journal Article
Physical Review Letters, ISSN 0031-9007, 03/2009, Volume 102, Issue 9, p. 093002
The group delay dispersion, also known as the attochirp, of high-order harmonics generated in gases has been identified as the main intrinsic limitation to the... 
PHYSICS, MULTIDISCIPLINARY | IONIZATION | LIGHT | PULSES | GASES | DISPERSIONS | SYNCHRONIZATION | LASERS | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | WAVELENGTHS | HARMONICS | FREQUENCY DEPENDENCE
Journal Article
Nature Communications, ISSN 2041-1723, 04/2017, Volume 8, Issue 1, p. 14971
Optical vortices are currently one of the most intensively studied topics in optics. These light beams, which carry orbital angular momentum (OAM), have been... 
FIELDS | LASER-BEAM | MULTIDISCIPLINARY SCIENCES | EXTREME-ULTRAVIOLET | LIGHT | PHOTONS | OPTICAL VORTICES | EMISSION | Physics - Optics | Physics | nonlinear optics | high-harmonic generation | CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS | ultrafast photonics
Journal Article
Nature Physics, ISSN 1745-2473, 05/2008, Volume 4, Issue 5, pp. 386 - 389
In 1964 Keldysh helped lay the foundations of strong-field physics by introducing a theoretical framework that characterized atomic ionization as a process... 
GASES | GENERATION | ABOVE-THRESHOLD-IONIZATION | PHYSICS, MULTIDISCIPLINARY | ENHANCEMENT | Theory | Lasers | Physics | Predictions
Journal Article
Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, 08/2013, Volume 46, Issue 16, pp. 164003 - 1-21
X-ray free-electron lasers (FELs) produce femtosecond x-ray pulses with unprecedented intensities that are uniquely suited for studying many phenomena in... 
BEAM | PHOTOIONIZATION | SINGLE | SHELL | EXCITATION | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | ATOMS | GENERATION | FEMTOSECOND | OPTICS | IONIZATION | PULSES | Femtosecond | Spectroscopy | Atomic beam spectroscopy | Free electron lasers | X-rays | Clusters | Instrumentation | Coherent light
Journal Article
Nature Photonics, ISSN 1749-4885, 11/2014, Volume 8, Issue 12, pp. 950 - 957
Short-wavelength free-electron lasers are now well established as essential and unrivalled sources of ultrabright coherent X-ray radiation. One of the key... 
PHYSICS, APPLIED | OPERATION | EXTREME-ULTRAVIOLET | MAGNETIC-FIELD | OPTICS | RADIATION | LCLS | Spikes | Substructures | Pulse duration | Free electron lasers | X-rays | Coherence | Photons | Temporal logic | Coherent light
Journal Article
Nature Physics, ISSN 1745-2473, 2018, Volume 14, Issue 1, pp. 68 - 73
The central goal of attosecond science is to visualize, understand and ultimately control electron dynamics in matter over the fastest relevant timescales. To... 
PHOTOIONIZATION | SPECTROSCOPY | PHYSICS, MULTIDISCIPLINARY | PHOTOEMISSION | LIGHT | DYNAMICS | LIMIT | ABOVE-THRESHOLD IONIZATION | DELAY | PULSES | Binding | Temporal resolution | Photoionization | Energy transfer | Electron wavepackets | Electrons | Physics
Journal Article
Physical Review Letters, ISSN 0031-9007, 02/2011, Volume 106, Issue 8, p. 083002
The nonlinear absorption mechanisms of neon atoms to intense, femtosecond kilovolt x rays are investigated. The production of Ne9+ is observed at x-ray... 
GENERATION | SHELL | EXCITATION | HARMONICS | PHYSICS, MULTIDISCIPLINARY | IONIZATION
Journal Article
Advances in Atomic, Molecular and Optical Physics, ISSN 1049-250X, 1995, Volume 35, Issue C, pp. 79 - 120
This chapter illustrates the emerging picture of strong-field interactions based on simple classic insights that have evolved with the mounting experimental... 
Journal Article
Physical Review Letters, ISSN 0031-9007, 04/2014, Volume 112, Issue 15, p. 153001
High harmonic generation (HHG) is used to measure the spectral phase of the recombination dipole matrix element (RDM) in argon over a broad frequency range... 
PHOTOIONIZATION | ORBITALS | ATOMS | PHYSICS, MULTIDISCIPLINARY | HIGH HARMONIC-GENERATION | Physics - Atomic Physics
Journal Article
Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, 12/2014, Volume 47, Issue 24, pp. 245003 - 7
Photoionization by an eXtreme UltraViolet (XUV) attosecond pulse train (APT) in the presence of an infrared pulse (RABBITT method) conveys information about... 
photoionization | delay | attosecond | OPTICS | PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | Trains | Photoionization | Initial conditions | Mathematical models | Signatures | Ultraviolet | Delay | Group delay | Fysik | Physical Sciences | Naturvetenskap | Natural Sciences
Journal Article
Physical Review Letters, ISSN 0031-9007, 11/2011, Volume 107, Issue 23, p. 233001
We show that high fluence, high-intensity x-ray pulses from the world's first hard x-ray free-electron laser produce nonlinear phenomena that differ... 
FIELDS | PHYSICS, MULTIDISCIPLINARY | LASER | SATURATION
Journal Article
Physical Review A - Atomic, Molecular, and Optical Physics, ISSN 1050-2947, 12/2015, Volume 92, Issue 6
Journal Article
Physical Review Letters, ISSN 0031-9007, 03/2012, Volume 108, Issue 13, p. 133401
Explosions of large Xe clusters (< Ni > similar to 11 000) irradiated by femtosecond pulses of 850 eV x-ray photons focused to an intensity of up to 1017... 
PHYSICS, MULTIDISCIPLINARY | IONIZATION | ATOMIC CLUSTERS | Fysik | Atom and Molecular Physics and Optics | Physical Sciences | Naturvetenskap | Natural Sciences | Atom- och molekylfysik och optik
Journal Article