389 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- R. Fonseca2 profiles39 · h 45
- O. Bertolami31 · h 53
- Luís O. Silva2 profiles28 · h 39
- J. Vieira3 profiles24 · h 24
- N. Loureiro2 profiles22 · h 27
- H. Terças3 profiles21 · h 11
- W. Mori2 profiles19 · h 56
- F. Fiuza2 profiles18 · h 30
- L. Silva17 · h 27
- T. Grismayer16 · h 23
- J. T. Mendonça3 profiles15 · h 33
- C. Bastos13 · h 18
- Instituto Superior TécnicoPT209 papers
- University of LisbonPT157 papers
- Grupo de Lasers e PlasmasPT57 papers
- Iscte – Instituto Universitário de LisboaPT56 papers
- University of California, Los AngelesUS26 papers
- University of OxfordGB24 papers
- Universidade do PortoPT21 papers
- Imperial College LondonGB20 papers
- Lancaster UniversityGB18 papers
- Massachusetts Institute of TechnologyUS18 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Cockcroft InstituteGB17 papers
252 papers
Radiation reaction cooling as a source of anisotropic momentum distributions with inverted populations
Pablo J. Bilbao, Luis O. Silva
Under the presence of strong electromagnetic fields and radiation reaction, plasmas develop anisotropic momentum distributions, characterized by a population inversion. This is a g…
Constructing precisely quasi-isodynamic magnetic fields
Alan Goodman, Katia Camacho Mata, Sophia A Henneberg +6
We present a novel method for numerically finding quasi-isodynamic stellarator magnetic fields with excellent fast-particle confinement and extremely small neoclassical transport.…
Exact solutions for the electromagnetic fields of a flying focus
D. Ramsey, A. Di Piazza, M. Formanek +10
The intensity peak of a "flying focus" travels at a programmable velocity over many Rayleigh ranges while maintaining a near-constant profile. Assessing the extent to which these f…
Bose-Einstein condensation of photons in microcavity plasmas
J. L. Figuiredo, H. Terças, J. T. Mendonça
Bose--Einstein condensation of a finite number of photons propagating inside a plasma-filled microcavity is investigated. The nonzero chemical potential is provided by the electron…
Benchmarking between fluid and global models for low-pressure oxygen DC glow discharges
Pedro Viegas, Tiago Cunha Dias, Chloé Fromentin +6
This work focuses on the benchmarking between a zero-dimensional (0D) global model (LoKI) and a one-dimensional (1D) radial fluid model for the positive column of oxygen DC glow di…
Study of vibrational kinetics of CO2 and CO in CO2-O2 plasmas under non-equilibrium conditions
C. Fromentin, T. Silva, T. C. Dias +4
This work explores the effect of O2 addition on CO2 dissociation and on the vibrational kinetics of CO2 and CO under various non-equilibrium plasma conditions. A self-consistent mo…
High-order coupling of shear and sonic continua in JET plasmas
Paulo Rodrigues, Duarte Borba, Francesca Cella +8
A recent model coupling the shear-Alfvén and acoustic continua, which depends strongly on the equilibrium shaping and on elongation in particular, is employed to explain the proper…
Arbitrarily Structured Laser Pulses
Jacob R. Pierce, John P. Palastro, Fei Li +5
Spatiotemporal control refers to a class of optical techniques for structuring a laser pulse with coupled space-time dependent properties, including moving focal points, dynamic sp…
Mitigation of the onset of hosing in the linear regime through plasma frequency detuning
Mariana Moreira, Patric Muggli, Jorge Vieira
The hosing instability poses a feasibility risk for plasma-based accelerator concepts. We show that the growth rate for beam hosing in the linear regime (which is relevant for conc…
Machine Learning-based models in particle-in-cell codes for advanced physics extensions
Chiara Badiali, Pablo J. Bilbao, Fábio Cruz +1
In this paper we propose a methodology for the efficient implementation of Machine Learning (ML)-based methods in particle-in-cell (PIC) codes, with a focus on Monte-Carlo or stati…
Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma
L. Verra
A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the…
The data-driven future of high energy density physics
Peter W. Hatfield, Jim A. Gaffney, Gemma J. Anderson +20
The study of plasma physics under conditions of extreme temperatures, densities and electromagnetic field strengths is significant for our understanding of astrophysics, nuclear fu…
Analysis of Proton Bunch Parameters in the AWAKE Experiment
V. Hafych, A. Caldwell, R. Agnello +85
A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This…
I-mode pedestal relaxation events in the Alcator C-Mod and ASDEX Upgrade tokamaks
D. Silvagni, J. L. Terry, W. McCarthy +13
In some conditions, I-mode plasmas can feature pedestal relaxation events (PREs) that transiently enhance the energy reaching the divertor target plates. To shed light into their a…
Slowdown of interpenetration of two counterpropagating plasma slab due to collective effects
N. Shukla, K. Schoeffler, J. Vieira +3
The nonlinear evolution of electromagnetic instabilities driven by the interpenetration of two plasma clouds is explored using {\it ab initio} kinetic plasma simulations…
Nonlinear Thomson scattering with ponderomotive control
D. Ramsey, B. Malaca, A. Di Piazza +7
In nonlinear Thomson scattering, a relativistic electron reflects and re-radiates the photons of a laser pulse, converting optical light to x rays or beyond. While this extreme fre…
Sub-nK thermometry of an interacting -dimensional homogeneous Bose gas
Muhammad Miskeen Khan, Mohammad Mehboudi, Hugo Tercas +2
We propose experimentally feasible means for non-destructive thermometry of homogeneous Bose Einstein condensates in different spatial dimensions (). Our impurity ba…
Optimal laser focusing for positron production in laser-electron scattering
Óscar Amaro, Marija Vranic
Laser-electron beam collisions that aim to generate electron-positron pairs require laser intensities , which can be obtained by focusing a 1-PW…
Neutrino-electron magnetohydrodynamics in an expanding Universe
L. M. Perrone, G. Gregori, B. Reville +2
We derive a new model for neutrino-plasma interactions in an expanding universe that incorporates the collective effects of the neutrinos on the plasma constituents. We start from…
Nonlinear density waves on graphene electron fluids
Pedro Cosme, Hugo Terças
In graphene, where the electron-electron scattering is dominant, electrons collectively act as a fluid. This hydrodynamic behaviour of charge carriers leads to exciting nonlinear p…
Zero-dimensional and pseudo-one-dimensional models of atmospheric-pressure plasma jet in binary and ternary mixtures of oxygen and nitrogen with helium background
Youfan He, Patrick Preissing, David Steuer +8
A zero-dimensional (volume-averaged) and a pseudo-one-dimensional (plug-flow) model are developed to investigate atmospheric-pressure plasma jet devices operated with He, He/O,…
Non-linear propagation effects of intense femtosecond pulses on low order harmonics in solids
Mukhtar Hussain, Gareth O Williams, Tayyab Imran +1
The non-linear propagation of the intense near-infrared (NIR) driving field in wide bandgap materials pose a challenge and an opportunity to control the spectral properties of high…
Kinetic instability in inductively oscillatory plasma equilibrium
Fábio Cruz, Thomas Grismayer, Luis O. Silva
A uniform in space, oscillatory in time plasma equilibrium sustained by a time-dependent current density is analytically and numerically studied resorting to particle-in-cell simul…
Bandwidth effects in stimulated Brillouin scattering driven by partially incoherent light
B. Brandão, J. E. Santos, R. M. G. M. Trines +2
A generalized Wigner-Moyal statistical theory of radiation is used to obtain a general dispersion relation for Stimulated Brillouin Scattering (SBS) driven by a broadband radiation…