Two-Pulse Direct Laser Acceleration in a Laser-Driven Plasma Accelerator

B. Bowers; M. LaBerge; A. Koehler; J. Couperus Cabadağ; Y. -Y. Chang; P. Ufer; M. Šmíd; A. Irman; T. Wang; A. Bernstein; G. Shvets; U. Schramm; M. Downer

arXiv · 2107.00479

Two-Pulse Direct Laser Acceleration in a Laser-Driven Plasma Accelerator

B. Bowers·M. LaBerge·A. Koehler·J. Couperus Cabadağ·Y. -Y. Chang·P. Ufer·M. Šmíd·A. Irman·T. Wang·A. Bernstein·G. Shvets·U. Schramm·M. Downer

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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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B. Bowers, M. LaBerge, A. Koehler, J. Couperus Cabadağ, Y. -Y. Chang, P. Ufer, M. Šmíd, A. Irman, T. Wang, A. Bernstein, G. Shvets, U. Schramm, M. Downer. 2021-06-30. Two-Pulse Direct Laser Acceleration in a Laser-Driven Plasma Accelerator. https://arxiv.org/abs/2107.00479

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