Novel methods in the Particle-In-Cell accelerator Code-Framework Warp

Vay, Jean‐Luc; Grote, D.P.; Cohen, R. H.; Friedman, A.

doi:10.1088/1749-4699/5/1/014019

Cited by 105 publications

(91 citation statements)

References 46 publications

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“…We implement the model within the WARP open-source framework available from Lawrence Berkeley National Laboratory [7]. WARP is capable of solving, from first principles, arbitrary electrodynamic problems [8].…”

Section: Introductionmentioning

confidence: 99%

Beam dynamics simulations of optically-enhanced field emission from structured cathodes

Seymour¹,

Grote²,

Mihalcea³

et al. 2016

AIP Conference Proceedings

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Section: Introductionmentioning

confidence: 99%

Beam dynamics simulations of optically-enhanced field emission from structured cathodes

Seymour¹,

Grote²,

Mihalcea³

et al. 2016

AIP Conference Proceedings

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“…The two-color laser-ionization injection technique was examined with 2D PIC simulations using the code warp [18], where the direct-current tunneling ionization model [19,20] is implemented. For the numerical example considered, the Keldysh parameter is small and tunneling ionization is dominant [19].…”

mentioning

confidence: 99%

Two-Color Laser-Ionization Injection

et al. 2014

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A method is proposed to generate femtosecond, ultra-low emittance (∼10 −8 m rad), electron beams in a laser-plasma accelerator using two lasers of different colors. A long-wavelength pump pulse, with large ponderomotive force and small peak electric field, excites a wake without fully ionizing a high-Z gas. A short-wavelength injection pulse, with small ponderomotive force and large peak electric field, co-propagating and delayed with respect to the pump laser, ionizes a fraction of the remaining bound electrons at a trapping wake phase, generating an electron beam that is accelerated in the wake.

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“…The electron beam dynamics and emission process were simulated using a finite-difference time-domain (FDTD) particle-in-cell (PIC) electromagnetic model based on warp [5]. The model was especially used to investigate the early-stage beam dynamics close to the cathode surface (including interaction with the emission-triggering laser pulse) [6].…”

Section: Numerical Simulation Techniquementioning

confidence: 99%

Structured electron beams from nano-engineered cathodes

Lueangaramwong¹,

Mihalcea²,

Andonian³

et al. 2017

AIP Conference Proceedings

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Abstract. The ability to engineer cathodes at the nano-scale have opened new possibilities such as enhancing quantum efficiency via surface-plasmon excitation, forming ultra-low-emittance beams, or producing structured electron beams. In this paper, we present numerical investigations of the beam dynamics associated with this class of cathode in the weak-and strong-field regimes. We finally discuss the possible applications of some of the achievable cathode patterns when coupled with other phase space manipulations.

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Novel methods in the Particle-In-Cell accelerator Code-Framework Warp

Cited by 105 publications

References 46 publications

Beam dynamics simulations of optically-enhanced field emission from structured cathodes

Beam dynamics simulations of optically-enhanced field emission from structured cathodes

Two-Color Laser-Ionization Injection

Structured electron beams from nano-engineered cathodes

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