Hannover 2016 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 52: Ultrashort Laser Pulses II

Q 52.1: Talk

Thursday, March 3, 2016, 14:30–14:45, a310

Elements of a Dielectric Laser Accelerator Beamline: Staging, Focusing, and Tapering — •Joshua McNeur, Martin Kozak, Norbert Schönenberger, Alexander Tafel, Ang Li, and Peter Hommelhoff — Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Staudtstrasse 1, 91058 Erlangen

Dielectric laser accelerators (DLAs) provide an attractive alternative to the high-cost radio frequency accelerators that currently define the high energy particle physics landscape. Their orders-of-magnitude smaller footprints and larger acceleration gradients potentially enable University-lab scale (and smaller) high energy electron sources with a wide range of applications. However, to progress from the proof of principle DLA experiments [1,2] to a DLA-based accelerator beamline, many challenges need to be addressed. Here, we report on first evidence of DLA-based staging, focusing, and compensation for electron dephasing. All of these results are crucial towards the realization of a multi-stage DLA that can generate a collimated high brightness relativistic electron beam.

1.Peralta, E. A. et al. Demonstration of electron acceleration in a laser-driven dielectric microstructure Nature 503, 91-94 (2013).

2.Breuer, J. & Hommelhoff, P. Laser-Based Acceleration of Nonrelativistic Electrons at a Dielectric Structure. Phys. Rev. Lett. 111, 134803 (2013).