Abstract
We demonstrate the instability-free ion acceleration regime by introducing laser control with two parallel circularly polarized laser pulses at an intensity of I = 6.8 × 1021 W/cm2, normally incident on a hydrogen foil. The special structure of the equivalent wave front of those two pulses, which contains Gaussian peaks in both sides and a concavity in the centre (2D), can suppress the transverse instabilities and hole boring effects to constrain a high density ion clump in the centre of the foil, leading to an acceleration over a long distance and gain above 1GeV/u for the ion bunches.
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Zhou, M., Zhao, S., Wang, H. et al. Instability-free ion acceleration by two laser pulses. Eur. Phys. J. Spec. Top. 223, 1031–1035 (2014). https://doi.org/10.1140/epjst/e2014-02153-7
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DOI: https://doi.org/10.1140/epjst/e2014-02153-7