Paper
16 October 2023 Influence of initial phase on radiation characteristics of electrons driven by non-tightly focused laser
Yubo Wang, Qingyu Yang, Youwei Tian
Author Affiliations +
Proceedings Volume 12792, Eighteenth National Conference on Laser Technology and Optoelectronics; 127920B (2023) https://doi.org/10.1117/12.2688354
Event: Eighteenth National Conference on Laser Technology and Optoelectronics, 2023, Shanghai, China
Abstract
Based on the classical Thomson scattering theory, a model of the interaction between a single electron and a periodic order linearly polarized Gaussian laser pulse is constructed and simulated by MATLAB. The effect of the initial phase on the distribution of space energy radiation is studied. The results show that the distribution characteristics of electron motion and energy radiation show spatial asymmetry with respect to the initial phase under the condition of non-tightly focused pulse. Specifically, the transverse motion and energy radiation distribution of electron are affected by the initial phase, resulting in a longitudinal drift. The spatial distribution of energy radiation shows obvious spatial asymmetry with respect to the initial phase, and its energy asymmetry coefficients are periodic symmetric with respect to the initial phase, and the reciprocal transformation relationship with π interval is presented. Then, we explored the influence of the laser pulse width and the initial phase on the asymmetry coefficient of the radiation energy and found that the distribution of the asymmetry coefficient on the initial phase of the radiation changes continuously clockwise with the increase of the laser pulse width.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yubo Wang, Qingyu Yang, and Youwei Tian "Influence of initial phase on radiation characteristics of electrons driven by non-tightly focused laser", Proc. SPIE 12792, Eighteenth National Conference on Laser Technology and Optoelectronics, 127920B (16 October 2023); https://doi.org/10.1117/12.2688354
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KEYWORDS
Electrons

Laser radiation

Pulsed laser operation

Thomson scattering

Laser scattering

Ultrafast phenomena

Polarization

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