High-purity free-electron momentum states prepared by three-dimensional optical phase modulation
Optics
2020-11-18 v1 Mesoscale and Nanoscale Physics
Instrumentation and Detectors
Quantum Physics
Abstract
We demonstrate the quantized transfer of photon energy and transverse momentum to a high-coherence electron beam. In an ultrafast transmission electron microscope, a three-dimensional phase modulation of the electron wavefunction is induced by transmitting the beam through a laser-illuminated thin graphite sheet. This all-optical free-electron phase space control results in high-purity superpositions of linear momentum states, providing an elementary component for optically programmable electron phase plates and beam splitters.
Cite
@article{arxiv.2003.01938,
title = {High-purity free-electron momentum states prepared by three-dimensional optical phase modulation},
author = {Armin Feist and Sergey V. Yalunin and Sascha Schäfer and Claus Ropers},
journal= {arXiv preprint arXiv:2003.01938},
year = {2020}
}