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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 15: Poster session

AKBP 15.7: Poster

Donnerstag, 21. März 2019, 16:30–18:00, Durchgangshalle

Development of a miniaturized dielectric laser accelerator — •Johannes Illmer, Norbert Schönenberger, Anna Mittelbach, Roy Shiloh, Ang Li, Alexander Tafel, Peyman Yousefi, and Peter Hommelhoff — Department Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 Erlangen

In recent years, dielectric laser acceleration (DLA) experiments have moved on from basic proof of principle to more applicable accelerator concepts. Utilizing the high strength optical near fields generated by illuminating transparent nanostructures with femtosecond laser pulses electrons can be accelerated. Acceleration gradients of up to 850 MeV/m have been demonstrated. The transverse size of these accelerating structures is typically in the single micron regime, while longitudinally the structure can be scaled to reach the desired beam energy. Novel photonic-structure concepts allow for a high phase space control and acceleration of the electron beam, making final beam energies of >1 MeV feasible. We present an experimental setup capable of holding and driving photonic nanostructures combined with a dedicated electron source and an electron spectrometer for detection purposes. The size of the setup conveniently fits in the volume of a shoebox. The compact and light weight design is the first step towards the usage of DLA technology in a variety of applications, ranging from small medical irradiation devices to small footprint free electron lasers.