Ultrashort high energy electron bunches from tunable surface plasma waves driven with laser wavefront rotation.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 33735997.
- Also identified by DOI 10.1103/PhysRevE.103.L021201.
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Abstract
We propose to use ultrahigh intensity laser pulses with wave-front rotation (WFR) to produce short, ultraintense 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 us to decrease the SPW duration (down to a few optical cycles) and increase its peak amplitude. In the relativistic regime, for Iλ_{0}^{2}=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 ultrashort (few fs) electron bunches.