Carlos de Oliveira
A5103202522- Particle Accelerators and Free-Electron Lasers
- Laser-Plasma Interactions and Diagnostics
- Particle accelerators and beam dynamics
- Advanced X-ray Imaging Techniques
- Laser Design and Applications
- Magnetic confinement fusion research
- Real-time simulation and control systems
- Laser-Matter Interactions and Applications
- Photocathodes and Microchannel Plates
- Superconducting Materials and Applications
- Laser-induced spectroscopy and plasma
- Atomic and Molecular Physics
Synchrotron soleil
2011-2023
Abstract Free-electron lasers generate high-brilliance coherent radiation at wavelengths spanning from the infrared to X-ray domains. The recent development of short-wavelength seeded free-electron now allows for unprecedented levels control on longitudinal coherence, opening new scientific avenues such as ultra-fast dynamics complex systems and nonlinear optics. Although those devices rely state-of-the-art large-scale accelerators, advancements laser-plasma which harness...
Abstract With gigaelectron-volts per centimetre energy gains and femtosecond electron beams, laser wakefield acceleration (LWFA) is a promising candidate for applications, such as ultrafast diffraction, multistaged colliders radiation sources (betatron, compton, undulator, free laser). However, some of these the beam performance, example, spread, divergence shot-to-shot fluctuations, need drastic improvement. Here, we show that, using dedicated transport line, can mitigate initial...
In order to deliver VUV (vacuum ultraviolet) photons under atmospheric pressure conditions, a differential pumping system has been built on the DISCO beamline at SOLEIL synchrotron radiation facility. The is made of four stages and 840 mm long. conductance-limiting body designed allow practicable optical alignment. transmission was tested air, nitrogen, argon neon, could be delivered down 60 nm (20 eV).
Abstract Undulator based synchrotron light sources and Free Electron Lasers (FELs) are valuable modern probes of matter with high temporal spatial resolution. Laser Plasma Accelerators (LPAs), delivering GeV electron beams in few centimeters, good candidates for future compact sources. However the barriers set by large energy spread, divergence shot-to-shot fluctuations require a specific transport line, to shape beam phase space achieving ultrashort undulator radiation suitable users even...
Abstract Free-electron lasers generate high-brilliance coherent radiation at wavelengths spanning from the infrared to X-ray domains. The recent development of short-wavelength seeded free-electron now allows for unprecedented levels control on longitudinal coherence[1], opening new scientific avenues as ultra-fast dynamics complex systems and nonlinear optics. While those devices rely state-of-the-art large-scale accelerators, advancements laser-plasma which harness giga-volt-per-centimeter...
A 15 mm period PrFeB Cryogenic Permanent Magnet Undulator (CPMU) is under construction at SOLEIL in the frame of a collaboration with MAXIV, relying on experience gained from two CPMU already installed SOLEIL. The improved design includes magnetic length 3 m and minimum gap mm, leading to polyvalent device interest for both synchrotron radiation sources free electron lasers. dedicated measurement bench also development perform measurements cryogenic temperature, based SAFALI system. designs...
Since the laser invention, advent of X-ray Free Electron Lasers (FEL) half a century later, opens new areas for matter investigation. In parallel, spectacular development plasma acceleration (LPA) with several GeV beam in an extremely short distance appears very promising. As first step, qualification LPA FEL application sets challenge. Still, energy spread and divergence do not meet state-of-the-art performance conventional accelerators have to be manipulated fulfill requirement. We report...