A microwave chip-based beam splitter for low-energy guided electrons
arXiv:1408.2658
Abstract
We demonstrate the splitting of a low-energy electron beam by means of a microwave pseudopotential formed above a planar chip substrate. Beam splitting arises from smoothly transforming the transverse guiding potential for an electron beam from a single-well harmonic confinement into a double-well, thereby generating two separated output beams with mm lateral spacing. Efficient beam splitting is observed for electron kinetic energies up to eV, in excellent agreement with particle tracking simulations. We discuss prospects of this novel beam splitter approach for electron-based quantum matter-wave optics experiments.
11 pages, 9 figures