Radiation characteristics of single and double peak pulses produced by a high energy electron head-on colliding with an intense laser pulse

Yu Chen; Hui Liu; Yunfeng Cai; Youwei Tian

doi:10.1117/12.2600888

31 August 2021 Radiation characteristics of single and double peak pulses produced by a high energy electron head-on colliding with an intense laser pulse

Yu Chen, Hui Liu, Yunfeng Cai, Youwei Tian

Author Affiliations +

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119070B (2021) https://doi.org/10.1117/12.2600888
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

According to Lorentz equation and electron motion equation, a collision model between a high-energy electron and an intense laser pulse is constructed, and the three-dimensional trajectory of electron motion and the pulse width, peak radiation power and frequency spectrum of radiation pulses under different observation angles and different laser pulse intensities are simulated by MATLAB software. The simulation results show that the motion of high-energy electron in the collision process is spiral for the intense laser pulse with initial phase φ₀ = 0 . When the observation angle Φ is 0° and 180°, the collision produces single zeptosecond pulse and double zeptosecond pulse, respectively. At Φ = 0, the peak radiation power of the radiation pulse is the largest, the pulse width is the smallest, and the spectrum presents two rising and falling shapes. At Φ= 180°, except that the spectrum shows the shape of first rising and then falling, other characteristics are opposite to those at Φ= 0°. The above characteristics of the laser pulse with a_i = 80 are better than those of the laser pulse with a_i = 50.

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Yu Chen, Hui Liu, Yunfeng Cai, and Youwei Tian "Radiation characteristics of single and double peak pulses produced by a high energy electron head-on colliding with an intense laser pulse", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119070B (31 August 2021); https://doi.org/10.1117/12.2600888

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