J. Verbeeck, H. Tian, P. Schattschneider:
"Production and application of electron vortex beams";
Production and application of electron vortex beams
It was demonstrated recently that passing electrons through a spiral stack of graphite thin films generates an electron beam with orbital angular momentum - analogous to the spiralling wavefronts that can be introduced in photon beams and which have found widespread application. Here, a versatile holographic technique for generating these twisted electron beams is described. Moreover, a demonstration is provided of their potential use in probing a material's magnetic properties.
Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.