Full space spectra generated by collision of electrons with different initial energy and positions with tightly focused laser pulses

Lingyu Xia; Yirui Yuan; Senyuan Zhu; Hongtao Xue; Youwei Tian

doi:10.1117/12.2688284

16 October 2023 Full space spectra generated by collision of electrons with different initial energy and positions with tightly focused laser pulses

Lingyu Xia, Yirui Yuan, Senyuan Zhu, Hongtao Xue, Youwei Tian

Author Affiliations +

Proceedings Volume 12792, Eighteenth National Conference on Laser Technology and Optoelectronics; 127920A (2023) https://doi.org/10.1117/12.2688284
Event: Eighteenth National Conference on Laser Technology and Optoelectronics, 2023, Shanghai, China

Abstract

Based on the classical Thomson scattering theory, we theoretically study the electron trajectory and spectrum generated during the frontal collision of electrons with a tightly focused circularly polarized laser pulse. The results show that there is a linear relationship between the initial z-axis coordinate z₀ of the electron and the collision center. The increase in the initial energy and the initial z-axis coordinate of the electron will cause the concentration of the longitudinal motion of the electron and the redshift of the spectrum. The difference between the two is that the higher the initial energy of the electron, the smaller the transverse motion of the electron, and the higher the maximum single harmonic energy of the spectrum, while the increase in the initial z-axis coordinate of the electron will cause the interference fringes of the spectrum to increase first and then decrease, and the maximum single harmonic energy will decrease overall, with a jump point at z₀ = 15λ₀.

Citation Download Citation

Lingyu Xia, Yirui Yuan, Senyuan Zhu, Hongtao Xue, and Youwei Tian "Full space spectra generated by collision of electrons with different initial energy and positions with tightly focused laser pulses", Proc. SPIE 12792, Eighteenth National Conference on Laser Technology and Optoelectronics, 127920A (16 October 2023); https://doi.org/10.1117/12.2688284

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