He has wide experience in using and developing numerical simulation codes, having contributed to the particle-in-cell codes OSIRIS, XOOPIC and Vorpal/VSim. He is part of the Awake collaboration on proton-driven wakefield acceleration of electrons, where he contributes to the development of photon acceleration as a wakefield diagnostic. In 2024, he led the research into advanced harmonic generation, producing modes not just with controlled frequency but also with controlled orbital angular momentum, leading to a paper in Nature Communications. This work lays the foundation for a generic description for harmonic progressions in more than one Fourier dimension. All the authors of this proposal are also authors of this paper.
Raoul’s research interests include:
- Raman and Brillouin amplification of high-power laser beams in low-density plasma
- higher-order laser modes with orbital angular momentum, and their nonlinear interactions,
- relativistic warm plasma dynamics,
- shock formation and wave breaking,
- controlled high-harmonic generation in plasma and nonlinear media, with laser beams having higher-order phase and polarisation topologies
Publications
.Simulations of efficient Raman amplification into the multipetawatt regime
R Trines et al
Amplification and generation of ultra-intense twisted laser pulses via stimulated Raman scattering
J Vieira, R Trines et al
High Orbital Angular Momentum Harmonic Generation
J Vieira, R Trines et al
Laser harmonic generation with independent control of frequency and orbital angular momentum
R Trines et al
New criteria for efficient Raman and Brillouin amplification of laser beams in plasma
R. Trines et al
Quasiparticle Approach to the Modulational Instability of Drift Waves Coupling to Zonal Flows
R Trines et al
Evidence of photon acceleration by laser wake fields
CD Murphy, R Trines et al
Wave-breaking limits for relativistic electrostatic waves in a one-dimensional warm plasma
R Trines, P Norreys