Controlling the group velocity of an intense laser pulse using a pre-pulse

Yoffe, Samuel R. and Ersfeld, Bernhard and Gupta, Devki N. and Jain, Arohi and Tooley, Matthew P. and Holt, George K. and Jaroszynski, Dino A. (2021) Controlling the group velocity of an intense laser pulse using a pre-pulse. Proceedings of SPIE, 11778. ISSN 0277-786X (https://doi.org/10.1117/12.2595294)

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Abstract

The accelerating structure of the laser wakefield accelerator (LWFA) is dynamic and highly sensitive to the local laser and plasma properties. It can expand and contract as it responds to the evolution of the laser and plasma fields. As a result, the position of, and environment within, the LWFA bubble are usually time dependent, which is not ideal for stable acceleration. Variations can have a negative impact on electron bunch properties, and are deleterious for ion channel lasers and plasma wigglers. We demonstrate how a laser pre-pulse improves the stability of the LWFA, and controls the evolution of the laser group and bubble velocity, which are important for determining LWFA dephasing and ultimately the electron bunch energy.

ORCID iDs

Yoffe, Samuel R. ORCID logoORCID: https://orcid.org/0000-0002-6723-4990, Ersfeld, Bernhard ORCID logoORCID: https://orcid.org/0000-0001-5597-9429, Gupta, Devki N., Jain, Arohi, Tooley, Matthew P., Holt, George K. and Jaroszynski, Dino A. ORCID logoORCID: https://orcid.org/0000-0002-3006-5492;
  • Item type:Article
    ID code:76275
    Dates:
    Date
    Event
    18 April 2021
    Published
    24 March 2021
    Accepted
    Notes:© 2021 Society of Photo Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Technology and Innovation Centre > Advanced Science and Technology
    Depositing user: Pure Administrator
    Date deposited:29 Apr 2021 13:57
    Last modified:18 Nov 2024 01:14
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/76275
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