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Journal Articles Phys.Rev.Res. Year : 2023

Electron acceleration by laser plasma wedge interaction


A new electron acceleration mechanism is identified that develops when a relativistically intense laser irradiates the wedge of an over-dense plasma. This induces a diffracted electromagnetic wave with a significant longitudinal electric field that accelerates electrons from the plasma over long distances to relativistic energies. Well collimated, highly-charged (nC) electron bunches with energies up to 100's MeV are obtained using a laser beam with $I \lambda_0^2 =3.5\times 10^{19}\,{\rm W \mu m^2/cm^2}$. Multi-dimensional particle-in-cell simulations, supported by a simple analytical model, confirm the efficiency and robustness of the proposed acceleration scheme.

Dates and versions

hal-03594354 , version 1 (02-03-2022)



S. Marini, P.S. Kleij, M. Grech, M. Raynaud, C. Riconda. Electron acceleration by laser plasma wedge interaction. Phys.Rev.Res., 2023, 5 (1), pp.013115. ⟨10.1103/PhysRevResearch.5.013115⟩. ⟨hal-03594354⟩
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