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Title: Pulse front tilt steering in laser plasma accelerators

Abstract

We report on the effect of laser spatiotemporal coupling in laser plasma accelerators. Pulse front tilt in the driving laser causes asymmetry in the wakefield, resulting in deflection of the electron beam from the laser axis. We explore the physical mechanisms and propose a quantitative model of electron steering, which is validated with particle-in-cell simulations. Even a small amount of pulse front tilt can result in beam steering in the final down ramp of the plasma profile, which may lead to unexpected beam-pointing errors or fluctuations. On the other hand, it can be used to govern the final beam direction, which has consequences for staging laser plasma accelerators in a high-energy physics collider as well as x-ray generation for biological imaging.

Authors:
ORCiD logo; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
OSTI Identifier:
1542532
Alternate Identifier(s):
OSTI ID: 1577645
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 22 Journal Issue: 7; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Physics

Citation Formats

Thévenet, Maxence, Mittelberger, Daniel E., Nakamura, Kei, Lehe, Rémi, Schroeder, Carl B., Vay, Jean-Luc, Esarey, Eric, and Leemans, Wim P. Pulse front tilt steering in laser plasma accelerators. United States: N. p., 2019. Web. doi:10.1103/PhysRevAccelBeams.22.071301.
Thévenet, Maxence, Mittelberger, Daniel E., Nakamura, Kei, Lehe, Rémi, Schroeder, Carl B., Vay, Jean-Luc, Esarey, Eric, & Leemans, Wim P. Pulse front tilt steering in laser plasma accelerators. United States. doi:10.1103/PhysRevAccelBeams.22.071301.
Thévenet, Maxence, Mittelberger, Daniel E., Nakamura, Kei, Lehe, Rémi, Schroeder, Carl B., Vay, Jean-Luc, Esarey, Eric, and Leemans, Wim P. Mon . "Pulse front tilt steering in laser plasma accelerators". United States. doi:10.1103/PhysRevAccelBeams.22.071301.
@article{osti_1542532,
title = {Pulse front tilt steering in laser plasma accelerators},
author = {Thévenet, Maxence and Mittelberger, Daniel E. and Nakamura, Kei and Lehe, Rémi and Schroeder, Carl B. and Vay, Jean-Luc and Esarey, Eric and Leemans, Wim P.},
abstractNote = {We report on the effect of laser spatiotemporal coupling in laser plasma accelerators. Pulse front tilt in the driving laser causes asymmetry in the wakefield, resulting in deflection of the electron beam from the laser axis. We explore the physical mechanisms and propose a quantitative model of electron steering, which is validated with particle-in-cell simulations. Even a small amount of pulse front tilt can result in beam steering in the final down ramp of the plasma profile, which may lead to unexpected beam-pointing errors or fluctuations. On the other hand, it can be used to govern the final beam direction, which has consequences for staging laser plasma accelerators in a high-energy physics collider as well as x-ray generation for biological imaging.},
doi = {10.1103/PhysRevAccelBeams.22.071301},
journal = {Physical Review Accelerators and Beams},
number = 7,
volume = 22,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.22.071301

Citation Metrics:
Cited by: 2 works
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    Works referencing / citing this record:

    Laser and electron deflection from transverse asymmetries in laser-plasma accelerators
    journal, December 2019