Bulletin of the American Physical Society
60th Annual Meeting of the APS Division of Plasma Physics
Volume 63, Number 11
Monday–Friday, November 5–9, 2018; Portland, Oregon
Session YP11: Poster Session IX: The crossover between high-energy-density plasmas and ultracold neutral plasmas ; Supplemental; Post-Deadline Abstracts (9:30am-12:30pm)
Friday, November 9, 2018
OCC Room: Exhibit Hall A1&A
Abstract ID: BAPS.2018.DPP.YP11.42
Abstract: YP11.00042 : Direct laser acceleration of electrons in a plasma bubble by a tightly confined laser pulse.*
(University of Texas at Austin)
Direct laser acceleration (DLA) in a plasma bubble presents a unique opportunity to manipulate the transverse and longitudinal phase spaces of the electron beam propagating inside a plasma bubble. We present an analytical theory and supporting PIC simulations that illustrate several overlooked effects in DLA. A small but finite longitudinal electric field of the laser pulse will be shown to produce a significant deceleration effect that partially offsets the acceleration by its transverse component. It is also shown that the DLA effect is not confined to moderate-energy electrons, but can be extended to GeV-scale beams. Finally, we show that DLA exists even in the decelerating portion of the plasma bubble. Applications of the DLA to X-ray generation and to the enhancement of the transformer ratio of a plasma wakefield accelerator will be discussed, and the results of the full PIC and a novel quasi-static code will be presented.
*The authors thank the Texas Advanced Computing Center (TACC) at The University of Texas at Austin for providing HPC resources.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DPP.YP11.42
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