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<p>This study examines the effects of periodic frequency chirping on Cosh-Gaussian (ChG) laser beam profiles, aiming to improve electron acceleration efficiency in vacuum. An analytical model has been developed to analyze the temporal evolution of the periodically chirped ChG pulse and its interaction with free electrons. Theoretical results indicate that periodic chirping markedly enhances the longitudinal electric field component, facilitating greater energy gain. Parametric analysis elucidates the influence of chirp amplitude, modulation frequency, and beam waist on the acceleration dynamics. The research illustrates that the optimized periodic chirping of ChG laser beams functions as an effective method for compact, vacuum-based electron acceleration systems pertinent to cutting-edge laser-plasma and photonic accelerator technologies.</p>

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Influence of periodic chirping on Cosh-Gaussian laser profiles for efficient electron acceleration

  • 期刊论文

  • 发表日期：

    2026年3月21日

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  • Vishal Thakur,
  • Vivek Sharma

摘要

This study examines the effects of periodic frequency chirping on Cosh-Gaussian (ChG) laser beam profiles, aiming to improve electron acceleration efficiency in vacuum. An analytical model has been developed to analyze the temporal evolution of the periodically chirped ChG pulse and its interaction with free electrons. Theoretical results indicate that periodic chirping markedly enhances the longitudinal electric field component, facilitating greater energy gain. Parametric analysis elucidates the influence of chirp amplitude, modulation frequency, and beam waist on the acceleration dynamics. The research illustrates that the optimized periodic chirping of ChG laser beams functions as an effective method for compact, vacuum-based electron acceleration systems pertinent to cutting-edge laser-plasma and photonic accelerator technologies.