Effects of laser intensity on the backscattering spectrum in tightly focused lasers

Chen Yang; Xiaodi Zhou; Jiawen Shao; Peishuo Yu; Youwei Tian

doi:10.1117/12.2691302

16 October 2023 Effects of laser intensity on the backscattering spectrum in tightly focused lasers

Chen Yang, Xiaodi Zhou, Jiawen Shao, Peishuo Yu, Youwei Tian

Proceedings Volume 12792, Eighteenth National Conference on Laser Technology and Optoelectronics; 127921H (2023) https://doi.org/10.1117/12.2691302
Event: Eighteenth National Conference on Laser Technology and Optoelectronics, 2023, Shanghai, China

Abstract

In order to study the influence of the laser intensity of linearly polarized laser on the radiation characteristics of single electron, a collision model between single electron and laser was constructed by formula derivation. MATLAB was used to write simulation program for numerical simulation and theoretical analysis, and the trajectory of electron was obtained. Then the radiation characteristics of single electron in three and two dimensions of linearly polarized laser with different laser intensities are studied. The results show that with the increase of laser intensity from 1 to 9, the maximum radial deviation of electron trajectory is further enhanced with the increase of laser intensity, and the axis position of the peak does not change. At the same time, the transverse amplitude and interference fringe number of the electron increase with the increase of laser intensity, and the spectral line broadening effect will appear more obvious, and the amplitude is not completely positively correlated with the emission power, and the peak value is reached at 6 and then decreases. However, the higher the laser intensity, the less monochromatic the spectrum is. The results provide more theoretical and numerical basis for the study of single-electron radiation characteristics, and provide reference for the further exploration of the parameters of ultra-strong laser.

Citation Download Citation

Chen Yang, Xiaodi Zhou, Jiawen Shao, Peishuo Yu, and Youwei Tian "Effects of laser intensity on the backscattering spectrum in tightly focused lasers", Proc. SPIE 12792, Eighteenth National Conference on Laser Technology and Optoelectronics, 127921H (16 October 2023); https://doi.org/10.1117/12.2691302

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