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arXiv · 2310.12384

Extended Interaction Length Laser-Driven Acceleration in a Tunable Dielectric Structure

Sophie Crisp·Alexander Ody·Joel England·Pietro Musumeci
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Abstract

The development of long, tunable structures is critical to increasing energy gain in laser-driven dielectric accelerators (DLAs). Here we combine pulse-front-tilt illumination with slab-geometry structures assembled by precisely aligning off-the-shelf 4~mm long transmission gratings to achieve up to 200 keV energy modulation for 6 MeV injected electrons. The effective interaction length is longer than 1~mm, limited by dephasing of the accelerated particles in the structure. The piezo-based independent mounting system for the gratings allows tuning of the gap and field distribution inside the structure.

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Sophie Crisp, Alexander Ody, Joel England, Pietro Musumeci. 2023-10-18. Extended Interaction Length Laser-Driven Acceleration in a Tunable Dielectric Structure. https://arxiv.org/abs/2310.12384

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