Start-to-end simulations of non-relativistic electron acceleration along reflective grating structure by front-tilted laser pulse

I. V. Beznosenko; A. V. Vasyliev; S. M. Kovalov; R. R. Kniaziev; G. V. Sotnikov

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arXiv · 2610.10193

Start-to-end simulations of non-relativistic electron acceleration along reflective grating structure by front-tilted laser pulse

I. V. Beznosenko·A. V. Vasyliev·S. M. Kovalov·R. R. Kniaziev·G. V. Sotnikov

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Abstract

A comprehensive (start-to-end) simulation was performed regarding the formation of a front-tilted laser pulse and the subsequent acceleration of non-relativistic electrons moving along a reflective grating structure. The laser pulse tilt was formed using another diffraction grating -- either reflective or transmissive. The pulse had a spectral range (FWHM) of 803--863 nm and an initial duration of approximately 17 fs. Acceleration under normal laser pulse incidence was also calculated for comparison. Research results indicate that the use of a femtosecond laser pulse with a front, tilted by means of a reflective diffraction grating, significantly enhances the efficiency of laser acceleration of non-relativistic electrons compared to the case of a pulse at normal incidence. Furthermore, it was found that using a transmissive diffraction grating to shape the tilted pulse front also increases acceleration efficiency relative to normal incidence on the accelerating grating, although the acceleration rate is lower than when a reflective diffraction grating is used.

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I. V. Beznosenko, A. V. Vasyliev, S. M. Kovalov, R. R. Kniaziev, G. V. Sotnikov. 2026-10-07. Start-to-end simulations of non-relativistic electron acceleration along reflective grating structure by front-tilted laser pulse. https://arxiv.org/abs/2610.10193

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