Excitation and Control of Plasma Wakefields by Multiple Laser Pulses
arXiv:1708.04206 · doi:10.1103/PhysRevLett.119.044802
Abstract
We demonstrate experimentally the resonant excitation of plasma waves by trains of laser pulses. We also take an important first step to achieving an energy recovery plasma accelerator by showing that unused wakefield energy can be removed by an out-of-resonance trailing laser pulse. The measured laser wakefields are found to be in excellent agreement with analytical and numerical models of wakefield excitation in the linear regime. Our results indicate a promising direction for achieving highly controlled, GeV-scale laser-plasma accelerators operating at multi-kilohertz repetition rates. This article was published in Physical Review Letters 119, 044802 on 27 July 2017. DOI: 10.1103/PhysRevLett.119.044802 Copyright 2017 American Physical Society.
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- Reconstructing nonlinear plasma wakefields using a generalized temporally encoded spectral shifting analysis