Concept
Laser à rayons X
Publications associées (64)
Numerical Study of the Attosecond Free-Electron Laser Pulse Generation in the Soft X-ray Regime at the SwissFEL
Isolated attosecond pulses from an X-ray free-electron laser are in high demand for attosecond science, which enables the probing of electron dynamics by X-ray nonlinear spectroscopy and single-particle imaging.The aim of this thesis is to simulate attosec ...
EPFL2024Generation and control of localized terahertz fields in photoemitted electron plasmas
Fabrizio Carbone, Giovanni Maria Vanacore, Ivan Madan, Ido Kaminer, Simone Gargiulo, Francesco Barantani
Dense micron-sized electron plasmas, such as those generated upon irradiation of nanostructured metallic surfaces by intense femtosecond laser pulses, constitute a rich playground to study light-matter interactions, many-body phenomena, and out-of-equilibr ...
ROYAL SOC CHEMISTRY2023Progress and prospects in nonlinear extreme-ultraviolet and X-ray optics and spectroscopy
Free-electron lasers and high-harmonic-generation table-top systems are new sources of extreme-ultraviolet to hard X-ray photons, providing ultrashort pulses that are intense, coherent and tunable. They are enabling a broad range of nonlinear optical and s ...
NATURE PORTFOLIO2023Element- and enantiomer-selective visualization of molecular motion in real-time
Majed Chergui, Malte Oppermann, Jérémy Raymond Jean Maurice Rouxel
Ultrafast optical-domain spectroscopies allow to monitor in real time the motion of nuclei in molecules. Achieving element-selectivity had to await the advent of time resolved X-ray spectroscopy, which is now commonly carried at X-ray free electron lasers. ...
Berlin2023Relation between Inner Structural Dynamics and Ion Dynamics of Laser-Heated Nanoparticles
When a nanoparticle is irradiated by an intense laser pulse, it turns into a nanoplasma, a transition that is accompanied by many interesting nonequilibrium dynamics. So far, most experiments on nanoplasmas use ion measurements, reflecting the outside dyna ...
AMER PHYSICAL SOC2021Highly efficient THz four-wave mixing in doped silicon
Third-order non-linearities are important because they allow control over light pulses in ubiquitous high-quality centro-symmetric materials like silicon and silica. Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet ...
SPRINGERNATURE2021Ultrafast Photon-Induced Tunneling Microscopy
Unification of the techniques of ultrafast science and scanning tunneling microscopy (STM) has the potential of tracking electronic motion in molecules simultaneously in real space and real time. Laser pulses can couple to an STM junction either in the wea ...
AMER CHEMICAL SOC2021Hot carrier-mediated avalanche multiphoton photoluminescence from coupled Au–Al nanoantennas
Avalanche multiphoton photoluminescence (AMPL) is observed from coupled Au–Al nanoantennas under intense laser pumping, which shows more than one order of magnitude emission intensity enhancement and distinct spectral features compared with ordinary metall ...
2021Evolution and ion kinetics of a XUV-induced nanoplasma in ammonia clusters
Marcel Drabbels, Andrew Daniel Bonnar Clark, Verónica Oliver Álvarez de Lara
High-intensity extreme ultraviolet (XUV) pulses from a free-electron laser can be used to create a nanoplasma in clusters. In reference Michiels et al (2020 Phys. Chem. Chem. Phys. 22 7828-34) we investigated the formation of excited states in an XUV-induc ...
2021Dynamics of soliton self-injection locking in optical microresonators
Tobias Kippenberg, Andrey Voloshin, Junqiu Liu, Wenle Weng
Soliton microcombs constitute chip-scale optical frequency combs, and have the potential to impact a myriad of applications from frequency synthesis and telecommunications to astronomy. The demonstration of soliton formation via self-injection locking of t ...
NATURE RESEARCH2021