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Two-Pulse Direct Laser Acceleration in a Laser-Driven Plasma Accelerator (2107.00479v1)
Published 30 Jun 2021 in physics.acc-ph and physics.plasm-ph
Abstract: We present methods and preliminary observations of two pulse Direct Laser Acceleration in a Laser-Driven Plasma Accelerator. This acceleration mechanism uses a second co-propagating laser pulse to overlap and further accelerate electrons in a wakefield bubble, increasing energy at the cost of emittance when compared to traditional laser wakefield acceleration (LWFA). To this end, we introduce a method of femtosecond scale control of time delay between two co-propagating pulses. We show energy enhancement when the separation between the two pulses approaches the bubble radius.
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