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Coherent kilo-electron-volt backscattering from plasma-wave boosted relativistic electron mirrors

Li, F. Y. and Sheng, Z. M. and Chen, M. and Wu, H. C. and Liu, Y. and Meyer-ter-Vehn, J. and Mori, W. B. and Zhang, J. (2014) Coherent kilo-electron-volt backscattering from plasma-wave boosted relativistic electron mirrors. Applied Physics Letters, 105 (16). ISSN 0003-6951

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A different parameter regime of laser wakefield acceleration driven by sub-petawatt femtosecond lasers is proposed, which enables the generation of relativistic electron mirrors further accelerated by the plasma wave. Integrated particle-in-cell simulation, including both the mirror formation and Thomson scattering, demonstrates that efficient coherent backscattering up to keV photon energy can be obtained with moderate driving laser intensities and high density gas targets.