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View article: Photochemical Formation and Electronic Structure of an Alkane σ-Complex from Time-Resolved Optical and X-ray Absorption Spectroscopy
Photochemical Formation and Electronic Structure of an Alkane σ-Complex from Time-Resolved Optical and X-ray Absorption Spectroscopy Open
C-H bond activation reactions with transition metals typically proceed via the formation of alkane σ-complexes, where an alkane C-H σ-bond binds to the metal. Due to the weak nature of metal-alkane bonds, σ-complexes are challenging to cha…
View article: Photochemical Formation and Electronic Structure of an Alkane 𝜎-Complex from Time-Resolved Optical and X-ray Absorption Spectroscopy
Photochemical Formation and Electronic Structure of an Alkane 𝜎-Complex from Time-Resolved Optical and X-ray Absorption Spectroscopy Open
C-H bond activation reactions with transition metals typically proceed via the formation of alkane 𝜎-complexes, where an alkane C-H 𝜎-bond binds to the metal. Due to the weak nature of metal-alkane bonds, 𝜎-complexes are challenging to cha…
View article: Tracking C–H activation with orbital resolution
Tracking C–H activation with orbital resolution Open
Transition metal reactivity toward carbon–hydrogen (C–H) bonds hinges on the interplay of electron donation and withdrawal at the metal center. Manipulating this reactivity in a controlled way is difficult because the hypothesized metal-al…
View article: Data for "Tracking C-H activation with orbital resolution"
Data for "Tracking C-H activation with orbital resolution" Open
These are the data displayed in the figures in the main text and in the Supplementary Materials of the manuscript entitled "Tracking C-H activation with orbital resolution".
View article: Data for "Tracking C-H activation with orbital resolution"
Data for "Tracking C-H activation with orbital resolution" Open
These are the data displayed in the figures in the main text and in the Supplementary Materials of the manuscript entitled "Tracking C-H activation with orbital resolution".
View article: Chromatic aberrations correction of attosecond high-order harmonic beams by flat-top spatial shaping of the fundamental beam
Chromatic aberrations correction of attosecond high-order harmonic beams by flat-top spatial shaping of the fundamental beam Open
Attosecond pulses created by high-order harmonic generation in gases often exhibit strong chromatic aberrations, arising from the broad bandwidth and wavelength-dependent nonlinear light–matter interaction. When the driving laser intensity…
View article: Tracking C-H activation with orbital resolution
Tracking C-H activation with orbital resolution Open
The reactivity towards C-H bond activation of alkanes with transition metals is determined by the ability of the metal to donate and withdraw electron density in due proportion. Manipulating this reactivity in a controlled way is difficult…
View article: Quantum watch and its intrinsic proof of accuracy
Quantum watch and its intrinsic proof of accuracy Open
We have investigated the rich dynamics of complex wave packets composed of multiple high-lying Rydbergstates in He. A quantitative agreement is found between theory and time-resolved photoelectron spectroscopyexperiments. We show that the …
View article: Resonant two-photon ionization of helium atoms studied by attosecond interferometry
Resonant two-photon ionization of helium atoms studied by attosecond interferometry Open
We study resonant two-photon ionization of helium atoms via the 1 s 3 p , 1 s 4 p and 1 s 5 p 1 P 1 states using the 15 th harmonic of a titanium-sapphire laser for the excitation and a weak fraction of the laser field for the ionization. …
View article: Resonant two-photon ionization of helium atoms studied by attosecond interferometry
Resonant two-photon ionization of helium atoms studied by attosecond interferometry Open
We study resonant two-photon ionization of helium atoms via the $1s3p$, $1s4p$ and $1s5p^1$P$_1$ states using the 15$^\mathrm{th}$ harmonic of a titanium-sapphire laser for the excitation and a weak fraction of the laser field for the ioni…
View article: Photoinduced bond oscillations in ironpentacarbonyl give delayed synchronous bursts of carbonmonoxide release
Photoinduced bond oscillations in ironpentacarbonyl give delayed synchronous bursts of carbonmonoxide release Open
Early excited state dynamics in the photodissociation of transition metal carbonyls determines the chemical nature of short-lived catalytically active reaction intermediates. However, time-resolved experiments have not yet revealed mechani…
View article: Complete characterization of multi-channel single photon ionization
Complete characterization of multi-channel single photon ionization Open
Ionization of atoms and molecules by absorption of a light pulse results in electron wavepackets carrying information on the atomic or molecular structure as well as on the dynamics of the ionization process. These wavepackets can be descr…
View article: Photoinduced bond oscillations in ironpentacarbonylFe(CO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release
Photoinduced bond oscillations in ironpentacarbonylFe(CO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release Open
The early excited state dynamics in the photodissociation of transition metal carbonyls determines the chemical nature of short-lived catalytically active reaction intermediates. However, time-resolved experiments have not yet revealed the…
View article: Photoinduced bond oscillations in ironpentacarbonylFe(CO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release
Photoinduced bond oscillations in ironpentacarbonylFe(CO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release Open
The early excited state dynamics in the photodissociation of transition metal carbonyls determines the chemical nature of short-lived catalytically active reaction intermediates. However, time-resolved experiments have not yet revealed the…
View article: Photoinduced bond oscillations in ironpentacarbonyl(FeCO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release
Photoinduced bond oscillations in ironpentacarbonyl(FeCO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release Open
The early excited state dynamics in the photodissociation of transition metal carbonyls determines the chemical nature of short-lived catalytically active reaction intermediates. However, time-resolved experiments have not yet revealed the…
View article: Photoinduced bond oscillations in ironpentacarbonyl(FeCO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release
Photoinduced bond oscillations in ironpentacarbonyl(FeCO)5 give delayed, synchronous bursts of carbonmonoxide(CO) release Open
The early excited state dynamics in the photodissociation of transition metal carbonyls determines the chemical nature of short-lived catalytically active reaction intermediates. However, time-resolved experiments have not yet revealed the…
View article: Focusing Properties of High-Order Harmonics
Focusing Properties of High-Order Harmonics Open
Many applications of the extreme ultraviolet (XUV) radiation obtained by high-order harmonic generation (HHG) in gases require a small focus area in order to enable attosecond pulses to reach a high intensity. Here, high-order harmonics ge…
View article: Singleshot polychromatic coherent diffractive imaging with a high-order harmonic source
Singleshot polychromatic coherent diffractive imaging with a high-order harmonic source Open
Singleshot polychromatic coherent diffractive imaging is performed with a high-intensity high-order harmonic generation source. The coherence properties are analyzed and several reconstructions show the shot-to-shot fluctuations of the inc…
View article: Photodissociation dynamics of the diamondoid adamantane induced by attosecond XUV pulses
Photodissociation dynamics of the diamondoid adamantane induced by attosecond XUV pulses Open
Synopsis Adamantane is the simplest of the diamondoid molecules, which due to their high stability are of high interest both in astrophysics and nanotechnology. This work investigates the molecular photodissociation after ionization by att…
View article: Spatiotemporal coupling of attosecond pulses
Spatiotemporal coupling of attosecond pulses Open
Significance In most optics textbooks, one writes the electric field describing an optical wave as a product of temporal and spatial amplitudes. This approximation often breaks down for short optical pulses. An example of such spatiotempor…
View article: Single-shot extreme-ultraviolet wavefront measurements of high-order harmonics
Single-shot extreme-ultraviolet wavefront measurements of high-order harmonics Open
We perform wavefront measurements of high-order harmonics using an extreme-ultraviolet (XUV) Hartmann sensor and study how their spatial properties vary with different generation parameters, such as pressure in the nonlinear medium, fundam…
View article: Spatial and temporal aspects of intense attosecond pulses for pump-probe experiments
Spatial and temporal aspects of intense attosecond pulses for pump-probe experiments Open
Nuclear and electronic dynamics in atoms and molecules are the foundation of many physical processes and chemical reactions. Often, these dynamics take place on timescales so much shorter than those commonly encountered that they are calle…
View article: A Versatile Velocity Map Ion-Electron Covariance Imaging Spectrometer for High-Intensity XUV Experiments
A Versatile Velocity Map Ion-Electron Covariance Imaging Spectrometer for High-Intensity XUV Experiments Open
We report on the design and performance of a velocity map imaging (VMI) spectrometer optimized for experiments using high-intensity extreme ultraviolet (XUV) sources such as laser-driven high-order harmonic generation (HHG) sources and fre…
View article: The ELI-ALPS facility: the next generation of attosecond sources
The ELI-ALPS facility: the next generation of attosecond sources Open
This review presents the technological infrastructure that will be available at the Extreme Light Infrastructure Attosecond Light Pulse Source (ELI-ALPS) international facility. ELI-ALPS will offer to the international scientific community…
View article: Two-photon double ionization of neon using an intense attosecond pulse train
Two-photon double ionization of neon using an intense attosecond pulse train Open
We present the first demonstration of two-photon double ionization of neon\nusing an intense extreme ultraviolet (XUV) attosecond pulse train (APT) in a\nphoton energy regime where both direct and sequential mechanisms are allowed.\nFor an…
View article: A high-order harmonic pump-probe setup using annular-beam interferometers
A high-order harmonic pump-probe setup using annular-beam interferometers Open
Demands are specified for an interferometer setup capable of supporting attosecond resolution pump-probe experiments, as well as molecular alignment experiments. A design for two interferometers fulfilling these demands is presented. As th…