A5068451845- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser Design and Applications
- Laser-Matter Interactions and Applications
- Dust and Plasma Wave Phenomena
- Solid State Laser Technologies
- Plasma Diagnostics and Applications
- High-pressure geophysics and materials
- Ionosphere and magnetosphere dynamics
Laboratoire d'Optique Appliquée
2016-2020
Performance of the novel high repetition rate HF-PW laser system ELI ALPS is presented in its first operation phase at 400 TW and 700 levels. Long-term was tested 2.5 10 Hz rates, where an exceptional 0.66% 1.08% shot-to-shot energy stability demonstrated, respectively. Thorough spatio-spectral temporal measurements confirmed quality output pulses with a Strehl ratio >0.9 after compression both rates. Amplified unprecedentedly 240 W average power were reached for time from PW-class...
With the recent advances in ultrahigh intensity lasers, exotic astrophysical phenomena can be investigated laboratory environments. Collisionless shock a plasma, prevalent events, is produced when strong electric or electromagnetic force induces structure time scale shorter than collision of charged particles. A near-critical-density (NCD) generated with an intense femtosecond laser, utilized to excite collisionless due its efficient and rapid energy absorption. We present electrostatic...
We investigate the electron heating induced by a relativistic-intensity laser pulse propagating through near-critical plasma. Using particle-in-cell simulations, we show that specific interaction regime sets in when, due to energy depletion caused plasma wakefield, front profile has steepened point of having length scale close wavelength. Wave breaking and phase mixing have then occurred, giving rise relativistically hot population following pulse. This flow is dense enough neutralize cold...
Laser-driven ion acceleration by intense, ultra-short, laser pulse has received increasing attention in recent years, and the availability of much compact versatile ions sources motivates study of laser-driven energetic neutral atoms. We demonstrate production a and directional beam hydrogen carbon atoms up to 200 keV per nucleon, with peak flow 2.7 x 10(13) atom s(-1). Laser accelerated are neutralized in pulsed, supersonic argon jet tunable density between 1.5 x 10(17) cm(-3) 6 10(18)...