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Article
Spectroscopy of alkali atoms (Li, Na, K) attached to large helium clusters
Large liquid helium clusters (Hen, n ≈ 104) produced in a supersonic jet are doped with alkali atoms (Li, Na, K) and characterized by means of laser induced fluorescence. Each cluster contains, on average, less t...
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Article
Hormonal Changes During Nutritional Intervention in Venezuelan Children with Severe Malnutrition 490
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Chapter and Conference Paper
A Real-Time Algorithm for Skype Traffic Detection and Classification
In the last years Skype has gained more and more attention from both the users and the scientific community. Namely, the users are interested in its ability to provide a free and reliable way to make phone cal...
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Chapter and Conference Paper
A Network-Aware Grid for Efficient Parallel Monte Carlo Simulation of Coagulation Phenomena
Remote instrumentation services often rely on distributed control and computation. In this framework, a grid infrastructure offers the opportunity to utilize massive memory and computing resources for the stor...
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Chapter
Topology Design of a Service Overlay Network for e-Science Applications
Nowadays, large-scale numerical simulation, data analysis, remote access to experimental apparatus and cooperative working play a key role in the practice of science and engineering. In this scenario, highly d...
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Article
Two-step excitation of Rb atoms on He nanodroplets
We present the first sequential laser excitation of atom-doped helium nanodroplets. Rubidium atoms on the surface of helium nanodroplets are selectively excited with a continuous wave laser to the 52P1/2 state s...
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Article
Full tunability of laser femtosecond high-order harmonics in the ultraviolet spectral range
We demonstrate experimentally the full tunability of a coherent femtosecond source in the whole ultraviolet spectral region. The experiment relies on the technique of high-order harmonic generation driven by a...
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Article
Open AccessCollective Autoionization in Multiply-Excited Systems: A novel ionization process observed in Helium Nanodroplets
Free electron lasers (FELs) offer the unprecedented capability to study reaction dynamics and image the structure of complex systems. When multiple photons are absorbed in complex systems, a plasma-like state ...
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Article
Determining the polarization state of an extreme ultraviolet free-electron laser beam using atomic circular dichroism
Ultrafast extreme ultraviolet and X-ray free-electron lasers are set to revolutionize many domains such as bio-photonics and materials science, in a manner similar to optical lasers over the past two decades. ...
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Article
Coherent control with a short-wavelength free-electron laser
Researchers demonstrate correlation of two colours (63.0 and 31.5 nm wavelengths) in a free-electron laser and control photoelectron angular distribution by adjusting phase with 3 attosecond resolution.
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Article
Open AccessInteratomic Coulombic decay cascades in multiply excited neon clusters
In high-intensity laser light, matter can be ionized by direct multiphoton absorption even at photon energies below the ionization threshold. However on tuning the laser to the lowest resonant transition, the ...
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Article
Open AccessAcetylacetone photodynamics at a seeded free-electron laser
The first steps in photochemical processes, such as photosynthesis or animal vision, involve changes in electronic and geometric structure on extremely short time scales. Time-resolved photoelectron spectrosco...
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Article
Open AccessSymmetry breakdown of electron emission in extreme ultraviolet photoionization of argon
Short wavelength free-electron lasers (FELs), providing pulses of ultrahigh photon intensity, have revolutionized spectroscopy on ionic targets. Their exceptional photon flux enables multiple photon absorption...
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Article
Complete reconstruction of bound and unbound electronic wavefunctions in two-photon double ionization
To be complete, the characterization of the photoionization process of atoms and molecules requires the extraction of all quantum-mechanical phases and amplitudes. So far, complete experiments have accessed on...
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Article
Open AccessUltrafast relaxation of photoexcited superfluid He nanodroplets
The relaxation of photoexcited nanosystems is a fundamental process of light–matter interaction. Depending on the couplings of the internal degrees of freedom, relaxation can be ultrafast, converting electroni...
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Article
The 6-D Model of National Culture as a Tool to Examine Cultural Interpretation of Migration Trauma-Related Dissociative Disorder: A Case Series
Dissociative experiences are common in traumatized individuals who can use dissociation as a psychological escape from emotional and physical distress associated with overwhelming traumatic events. Traumatic e...
