Quantum-Coherent Light-Electron Interaction in a Scanning Electron Microscope

R. Shiloh, T. Chlouba, P. Hommelhoff

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35 Scopus citations

Abstract

The last two decades experimentally affirmed the quantum nature of free electron wave packets by the rapid development of transmission electron microscopes into ultrafast, quantum-coherent systems. So far, all experiments were restricted to the bounds of transmission electron microscopes enabling one or two photon-electron interaction sites. We show the quantum coherent coupling between electrons and light in a scanning electron microscope, at unprecedentedly low, subrelativistic energies down to 10.4 keV. These microscopes not only afford the yet-unexplored energies from ∼0.5 to 30 keV providing the optimum electron-light coupling efficiency, but also offer spacious and easily configurable experimental chambers for extended, cascaded optical set ups, potentially boasting thousands of photon-electron interaction sites. Our results make possible experiments in electron wave packet shaping, quantum computing, and spectral imaging with low-energy electrons.

Original languageEnglish
Article number235301
JournalPhysical Review Letters
Volume128
Issue number23
DOIs
StatePublished - 10 Jun 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022 American Physical Society.

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