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Direct electron acceleration with tightly focused TM_(0,1) beams: boundary conditions and non-paraxial corrections

机译:紧密聚焦的TM_(0,1)光束的直接电子加速:边界条件和非傍轴校正

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摘要

Non-paraxial corrections for a scalar optical field that follows the Helmotz equation are extracted for the first time, to the best of our knowledge, in the angular spectrum representation by taking into account generic boundary conditions. Those integration constants are compared with closed-form solutions and approximate series expansions usually obtained by other authors. This method is particularized to the direct electron acceleration with a tightly focused TM_(0,1) laser beam to demonstrate that these constants have a strong effect on the final average energy and quality of the electron beam.
机译:据我们所知,通过考虑通用边界条件,在我们所知的范围内,首次提取了遵循Helmotz方程的标量光场的非傍轴校正。将这些积分常数与通常由其他作者获得的闭式解和近似级数展开进行比较。该方法专门用于紧紧聚焦的TM_(0,1)激光束对电子的直接加速作用,以证明这些常数对电子束的最终平均能量和质量有很强的影响。

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