Erlangen 2022 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 58: Matter Wave Optics

Q 58.5: Poster

Thursday, March 17, 2022, 16:30–18:30, P

Creating auto-ponderomotive potentials with planar, chip-based electrodes for electron beam manipulation — •Franz Schmidt-Kaler, Michael Seidling, Robert Zimmermann, Nils Bode, and Peter Hommelhoff — Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91058 Erlangen

Advances in complex free electron beam manipulation are shown to be possible based on planar electrodes and electrostatic fields. In the frame of the moving electrons these static fields transform into an alternating auto-ponderomotive potential. This confining pseudopotential resembles the one of a radiofrequency-driven Paul trap. Well-designed electrode layouts enable electron beam splitting and curved guiding, which we demonstrated. The applied electron energies range from a few eV to 1.7 keV (splitting) and 9.5 keV (guiding) permitting integration into standard scanning electron microscopes to allow entirely new electron control.