Mohler, K. J. and Ehberger, D. and Gronwald, I and Lange, C. and Huber, R. and Baum, P. (2020) Ultrafast electron diffraction from nanophotonic waveforms via dynamical Aharonov-Bohm phases. SCIENCE ADVANCES, 6 (47): eabc8804. ISSN 2375-2548,
Full text not available from this repository. (Request a copy)Abstract
Electron interferometry via phase-contrast microscopy, holography, or picodiffraction can provide a direct visualization of the static electric and magnetic fields inside or around a material at subatomic precision, but understanding the electromagnetic origin of light-matter interaction requires time resolution as well. Here, we demonstrate that pump-probe electron diffraction with all-optically compressed electron pulses can capture dynamic electromagnetic potentials in a nanophotonic material with sub-light-cycle time resolution via centrosymmetry-violating Bragg spot dynamics. The origin of this effect is a sizable quantum mechanical phase shift that the electron de Broglie wave obtains from the oscillating electromagnetic potentials within less than 1 fs. Coherent electron imaging and scattering can therefore reveal the electromagnetic foundations of light-matter interaction on the level of the cycles of light.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTROMAGNETIC POTENTIALS; MICROSCOPY; HOLOGRAPHY; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Mar 2021 09:53 |
| Last Modified: | 08 Mar 2021 09:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43461 |
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