18 citations · 79 across the 13 of their papers we have counts for
8 papers · 1 filter
Intensity and Dimensionality-Dependent Dynamics of Laser-Proton Acceleration in 1D, 2D, and 3D Particle-in-Cell Simulations
Lillian A. Daneshmand, Madeline Aszalos, Scott Feister +1
Due to the high computational cost of 3D particle-in-cell (PIC) simulations, lower-dimensional (2D or 1D) simulations are frequently used in their place. Our work shows that when m…
Applying Machine Learning Methods to Laser Acceleration of Protons: Lessons Learned from Synthetic Data
Ronak Desai, Thomas Zhang, Ricky Oropeza +6
Researchers in the field of ultra-intense laser science are beginning to embrace machine learning methods. In this study we consider three different machine learning methods -- a t…
A Particle-In-Cell Code Comparison for Ion Acceleration: EPOCH, LSP, and WarpX
Joseph R. Smith, Chris Orban, Nashad Rahman +3
There are now more Particle-in-Cell (PIC) codes than ever before that researchers use to simulate intense laser-plasma interactions. To date, there have been relatively few direct…
Particle-in-Cell modeling of a potential demonstration experiment for double pulse enhanced target normal sheath acceleration
Nashad Rahman, Joseph R. Smith, Gregory Ngirmang +1
Ultra intense lasers are a promising source of energetic ions for various applications. An interesting approach described in Ferri et al. 2019 argues from Particle-in-Cell simulati…
Optimizing Laser-Plasma Interactions for Ion Acceleration using Particle-in-Cell Simulations and Evolutionary Algorithms
Joseph R. Smith, Chris Orban, John T. Morrison +4
The development of ultra-intense laser-based sources of high energy ions is an important goal, with a variety of potential applications. One of the barriers to achieving this goal…
Experimental observation and computational modeling of radial Weibel instability in high intensity laser-plasma interactions
Gregory K. Ngirmang, John T. Morrison, Kevin M. George +5
When a relativistic intensity laser interacts with the surface of a solid density target, suprathermal electron currents are subject to Weibel instability filamentation when propag…
Particle-in-Cell Simulations of Density Peak Formation and Ion Acceleration from Short Pulse Laser-Driven Ponderomotive Steepening
Joseph R. Smith, Chris Orban, Gregory K. Ngirmang +4
We use particle-in-cell (PIC) simulations and simple analytic models to investigate the laser-plasma interaction known as ponderomotive steepening. When normally incident laser lig…
Relativistic electron acceleration by mJ-class kHz lasers normally incident on liquid targets
Scott Feister, Drake R. Austin, John T. Morrison +10
We report observation of kHz-pulsed-laser-accelerated electron energies up to 3 MeV in the - (backward) direction from a 3 mJ laser interacting at normal incidence…