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Laser-plasma lens for laser-wakefield accelerators

Abstract : Thanks to their compactness and unique properties, laser-wakefield accelerators are currently considered for several innovative applications. However, many of these applications—and especially those that require beam transport—are hindered by the large divergence of laser-accelerated beams. Here we propose a collimating concept that relies on the strong radial electric field of the laser-wakefield to reduce this divergence. This concept utilizes an additional gas jet, placed after the laser-wakefield accelerator. When the laser pulse propagates through this additional gas jet, it drives a wakefield which can refocus the trailing electron bunch. Particle-in-cell simulations demonstrate that this approach can reduce the divergence by at least a factor of 3 for realistic electron bunches.
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Contributor : Victor Malka Connect in order to contact the contributor
Submitted on : Monday, July 13, 2015 - 2:01:02 PM
Last modification on : Friday, December 3, 2021 - 11:34:03 AM
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PhysRevSTAB.17.121301.pdf
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Lehe Remi, Cédric Thaury, Emilien Guillaume, Agustin Lifschitz, Victor Malka. Laser-plasma lens for laser-wakefield accelerators. Physical Review Special Topics - Accelerators and Beams, 2014, pp.121301. ⟨10.1103/PhysRevSTAB.17.121301⟩. ⟨hal-01163713⟩

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