Ultrashort high energy electron bunches from tunable surface plasma waves driven with laser wavefront rotation
Résumé
We propose to use ultra-high intensity laser pulses with wavefront rotation (WFR) to produce short, ultra-intense surface plasma waves (SPW) on grating targets for electron acceleration. Combining a smart grating design with optimal WFR conditions identified through simple analytical modeling and particle-in-cell simulation allows to decrease the SPW duration (down to few optical cycles) and increase its peak amplitude. In the relativistic regime, for Iλ 2 0 = 3.4 × 10 19 W/cm 2 µm 2 , such SPW are found to accelerate high-charge (few 10's of pC), high-energy (up to 70 MeV) and ultra-short (few fs) electron bunches.
Domaines
Physique [physics]
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Marini et al. - 2021 - Ultrashort high energy electron bunches from tunab.pdf (2 Mo)
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