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Title: Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator

Abstract

We show experimental results of probing the electric field structure of plasma wakes by using femtosecond relativistic electron bunches generated from a laser wakefield accelerator. Snapshots of laser-driven linear wakes in plasmas with different densities and density gradients are captured. The spatiotemporal evolution of the wake in a plasma density up-ramp is recorded. Two parallel wakes driven by a laser with a main spot and sidelobes are identified in the experiment and reproduced in simulations. The capability of this new method for capturing the electron- and positron-driven wakes is also shown via 3D particle-in-cell simulations.

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [2]; ORCiD logo [2];  [2];  [2];  [2];  [3];  [3];  [4];  [5];  [2];  [6]
  1. Tsinghua Univ., Beijing (China). Dept. of Engineering Physics; Univ. of California Los Angeles, Los Angeles, CA (United States). Dept. of Elecctrical Engineering
  2. Tsinghua Univ., Beijing (China). Dept. of Engineering Physics
  3. Univ. of California Los Angeles, Los Angeles, CA (United States). Dept. of Electrical Engineering; Univ. of California Los Angeles, Los Angeles, CA (United States). Dept. of Physics and Astronomy
  4. National Central Univ., Jhong-Li (Taiwan). Dept. of Physics
  5. National Central University, Jhong-Li (Taiwan). Dept. of Physics; Academia Sinica, Taipei (Taiwan). Inst. of Atomic and Molecular Sciences; National Taiwan Univ., Taipei (Taiwan). Dept. of Physics
  6. Univ. of California Los Angeles, Los Angeles, CA (United States). Dept. of Electrical Engineering
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory-National Energy Research Scientific Computing Center
Sponsoring Org.:
USDOE
OSTI Identifier:
1523481
DOE Contract Number:  
SC0010064; SC0008491; SC0008316; SC0014260
Resource Type:
Journal Article
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 60; Journal Issue: 4; Journal ID: ISSN 0741-3335
Country of Publication:
United States
Language:
English

Citation Formats

Zhang, C. J., Wan, Y., Guo, B., Hua, J. F., Pai, C-H, Li, F., Zhang, J., Ma, Y., Wu, Y. P., Xu, X. L., Mori, W. B., Chu, H-H, Wang, J., Lu, W., and Joshi, C. Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator. United States: N. p., 2018. Web. doi:10.1088/1361-6587/aaabfd.
Zhang, C. J., Wan, Y., Guo, B., Hua, J. F., Pai, C-H, Li, F., Zhang, J., Ma, Y., Wu, Y. P., Xu, X. L., Mori, W. B., Chu, H-H, Wang, J., Lu, W., & Joshi, C. Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator. United States. doi:10.1088/1361-6587/aaabfd.
Zhang, C. J., Wan, Y., Guo, B., Hua, J. F., Pai, C-H, Li, F., Zhang, J., Ma, Y., Wu, Y. P., Xu, X. L., Mori, W. B., Chu, H-H, Wang, J., Lu, W., and Joshi, C. Thu . "Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator". United States. doi:10.1088/1361-6587/aaabfd.
@article{osti_1523481,
title = {Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator},
author = {Zhang, C. J. and Wan, Y. and Guo, B. and Hua, J. F. and Pai, C-H and Li, F. and Zhang, J. and Ma, Y. and Wu, Y. P. and Xu, X. L. and Mori, W. B. and Chu, H-H and Wang, J. and Lu, W. and Joshi, C.},
abstractNote = {We show experimental results of probing the electric field structure of plasma wakes by using femtosecond relativistic electron bunches generated from a laser wakefield accelerator. Snapshots of laser-driven linear wakes in plasmas with different densities and density gradients are captured. The spatiotemporal evolution of the wake in a plasma density up-ramp is recorded. Two parallel wakes driven by a laser with a main spot and sidelobes are identified in the experiment and reproduced in simulations. The capability of this new method for capturing the electron- and positron-driven wakes is also shown via 3D particle-in-cell simulations.},
doi = {10.1088/1361-6587/aaabfd},
journal = {Plasma Physics and Controlled Fusion},
issn = {0741-3335},
number = 4,
volume = 60,
place = {United States},
year = {2018},
month = {3}
}