Erlangen 2022 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 42: Laser and Laser Applications

Q 42.3: Poster

Wednesday, March 16, 2022, 16:30–18:30, P

A compact ultrafast electron source and its application for cell irradiation experiments — •Bastian Löhrl, Leon Brückner, and Peter Hommelhoff — Chair for Laser Physics, Friedrich-Alexander-University Erlangen-Nuremberg (FAU), Staudtstr. 1, 91058 Erlangen

Dielectric Laser Acceleration (DLA) could open new avenues in clinical radiotherapy due to its potential to create a compact accelerator on a chip [1]. DLAs place strong requirements on the emittance and brightness of the electron beam. Motivated by this, we are investigating the performance of a compact electron source [2] containing nano tips. The emitters are placed in ultra-high vacuum and are laser triggered by near-infrared laser pulses. The source can create ultrashort electron pulses with a high bunch charge. We are aiming towards using this source for biological experiments such as cell irradiation. The current state of the experiment will be discussed.

[1] England, R. Joel, et al. "Dielectric laser accelerators." Reviews of Modern Physics 86.4 (2014): 1337.

[2] Hirano, Tomohiko, et al. "A compact electron source for the dielectric laser accelerator." Applied Physics Letters 116.16 (2020): 161106.