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<p>We consider the possibility of creating a compact source of extreme ultraviolet radiation, which is based on a free-electron laser using a microundulator with a period of 1 mm and a plasma accelerator with a wake wave. It is shown that the use of a microundulator allows one to significantly reduce the length of the interaction space and increase the resistance of the free-electron laser to the angular spread of the beam particles as compared to a longer-period undulator. Analytical estimates of the growth rate of the radiation power and the sensitivity to the spread of the beam parameters agree well with the results of numerical simulations using the Genesis 1.3 code. The feasibility of a pulsed microundulator having the required parameters is demonstrated experimentally.</p>

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Prospects for the Development of a Compact Free-Electron Laser in the Extreme Ultraviolet Range on the Basis of a Plasma Accelerator and a Microundulator

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • I. V. Bandurkin,
  • P. V. Loginov,
  • N. Yu. Peskov,
  • A. V. Savilov

摘要

We consider the possibility of creating a compact source of extreme ultraviolet radiation, which is based on a free-electron laser using a microundulator with a period of 1 mm and a plasma accelerator with a wake wave. It is shown that the use of a microundulator allows one to significantly reduce the length of the interaction space and increase the resistance of the free-electron laser to the angular spread of the beam particles as compared to a longer-period undulator. Analytical estimates of the growth rate of the radiation power and the sensitivity to the spread of the beam parameters agree well with the results of numerical simulations using the Genesis 1.3 code. The feasibility of a pulsed microundulator having the required parameters is demonstrated experimentally.