Results 21 to 30 of about 566,112 (285)

Ultrafast light-induced dynamics in the microsolvated biomolecular indole chromophore with water

open access: yesNature Communications, 2022
Experimentally following the ultrafast dynamics of microsolvated molecules is challenging due to the inherently produced soup mix of various gas-phase aggregates.
Jolijn Onvlee   +2 more
doaj   +1 more source

Minimizing attosecond CEP jitter by carrier envelope phase tuning [PDF]

open access: yesEPJ Web of Conferences, 2019
Minimizing the CEP jitter of isolated attosecond pulses (IAP) will be important for future applications. This jitter is experimentally and theoretically investigated and can be minimized when the driving pulse is near its Fourier limit but with slightly ...
Prandolini Mark. J.   +8 more
doaj   +1 more source

An Optimized Approach for Serial Crystallography Using Chips

open access: yesCrystals, 2023
Serial crystallography is a rapidly developing method for the determination of the structure of biomolecules at room temperature at near-atomic resolution from an ensemble of small crystals. Numerous advances in detectors, data analysis pipelines, sample
Marina Galchenkova   +6 more
doaj   +1 more source

Analysis of multibunch free electron laser operation [PDF]

open access: yes, 2017
At the SASE-FEL user facilities FLASH and European XFEL, superconducting TESLA type cavities are used for acceleration of the driving electron bunches.
Branlard, Julien   +2 more
core   +4 more sources

Chirped seeded free-electron lasers: self-standing light sources for two-colour pump-probe experiments

open access: yes, 2012
We demonstrate the possibility to run a single-pass free-electron laser in a new dynamical regime, which can be exploited to perform two-colour pump-probe experiments in the VUV/X-ray domain, using the free-electron laser emission both as a pump and as a
Allaria, Enrico   +4 more
core   +3 more sources

Harmonic operation of a free-electron laser [PDF]

open access: yes, 1991
Harmonic operation of a free-electron-laser amplifier is studied. The key issue investigated here is suppression of the fundamental. For a tapered amplifier with the right choice of parameters, it is found that the presence of the harmonic mode greatly ...
Antonsen, T   +3 more
core   +1 more source

Operational experience with Adaptive Gain Integrating Pixel Detectors at European XFEL

open access: yesFrontiers in Physics
The European X-ray Free Electron Laser (European XFEL) is a cutting-edge user facility that generates per second up to 27,000 ultra-short, spatially coherent X-ray pulses within an energy range of 0.26 to more than 20 keV.
Jolanta Sztuk-Dambietz   +27 more
doaj   +1 more source

Analogy between free electron laser and channeling by crystal planes

open access: yes, 2004
The trapping of electrons in the ponderomotive potential wells, which governs a free electron laser or inverse free electron laser at high gain, is analogous to the channeling of charged particles by atomic planes of a crystal.
Artru, X.
core   +2 more sources

Roles of Free Electrons and H2O2 in the Optical Breakdown-Induced Photochemical Reduction of Aqueous [AuCl4]- [PDF]

open access: yes, 2017
Free electrons and H2O2 formed in an optical breakdown plasma are found to directly control the kinetics of [AuCl4]− reduction to form Au nanoparticles (AuNPs) during femtosecond laser-assisted synthesis of AuNPs.
John, Mallory G   +3 more
core   +2 more sources

Bound-free $\mathbf{e}^+ \mathbf{e}^-$ pair creation with a linearly polarized laser field and a nuclear field

open access: yes, 2008
The process of bound-free pair production of electrons and positrons in combined laser and Coulomb fields is investigated. It is assumed that an ion collides at relativistic speed with an intense x-ray laser beam of linear polarization.
Deneke, C., Müller, C.
core   +1 more source

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