研究目的
To analyze the influence of linearly polarized laser intensity on the dynamic law of high-energy electrons and the spatial emission characteristics from an electron driven by intense linearly polarized laser pulses.
研究成果
The beam waist radius significantly influences the spatial emission characteristics from electrons. With increasing beam waist radius, the electron trajectory's maximum spatial emission characteristics and transverse quivering amplitude first increase and then decrease. The radiated power distribution shows a significant asymmetric distribution, with the peak value increasing with the beam waist radius. When the beam radius is small enough, 'ramification' abnormal distribution appears in the radiated power distribution. This work lays a theoretical foundation for practical experiments in ultrafast or high-intensity radiated field sciences.
研究不足
The study is limited to simulations and theoretical models, and practical experimental validation is required. The reasons for the observed dependencies and ramifications need further research.
1：Experimental Design and Method Selection:
A low-energy single-electron acceleration model based on the Lorentz equation and an energy equation was established. The trajectories of electrons in laser pulses with different beam waist radii were simulated using MATLAB software.
2：Sample Selection and Data Sources:
The study focused on the interaction of free electrons with intense laser fields, simulating the trajectories and radiated power distribution.
3：List of Experimental Equipment and Materials:
MATLAB software was used for simulations. The laser parameters included a working wavelength of 1 μm, pulse width of 5λ0 (16.7 fs), and laser intensity a =
4：7 fs), and laser intensity a = Experimental Procedures and Operational Workflow:
7.
4. Experimental Procedures and Operational Workflow: The electron motion was simulated under different beam waist radii conditions, and the radiated power distribution was analyzed.
5：Data Analysis Methods:
The radiated power per unit solid angle was calculated to analyze the spatial characteristics of emission.
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