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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 5: New Accelerator Concepts - Experimental Results
AKBP 5.2: Group Report
Tuesday, March 19, 2024, 10:00–10:30, E 020
Extended coherent nanophotonic electron acceleration — •Stefanie Kraus1, Tomás Chlouba1, Roy Shiloh2, Leon Brückner1, Julian Litzel1, Zhexin Zhao1, Manuel Konrad1, and Peter Hommelhoff1 — 1Friedrich-Alexander-Universität (FAU), Erlangen, Germany — 2Hebrew University, Jerusalem, Israel
Today's classical particle accelerators use radio-frequency metal cavities to accelerate and confine particles by synchronizing a microwave travelling wave with the particle propagation. We have shown the same principle, but in the optical domain and with dielectric materials. We demonstrate acceleration of electrons from 28.4 to 40.7 keV in a 0.5 mm long structure. Not only do we accelerate the electrons, but we also confine them with the help of the optical fields transversely utilising the alternating phase focussing scheme. This way, we can accelerate the electrons inside of a 250 nm narrow channel [1]. This could lead to a new type of accelerator that fits on a chip for applications in science, medicine, and industry.
[1] T. Chlouba*, R. Shiloh*, S. Kraus*, L. Brückner*, J. Litzel, P. Hommelhoff, Nature, 622, 476-480 (2023)
Keywords: Dielectric; Laser; Accelerator; Nanophotonic; Electron