title: 3D shaping of electron beams using amplitude masks.
abstract: Shaping the electron wavefunction in three dimensions may prove to be an indispensable tool for research involving atomic-sized particle trapping, manipulation, and synthesis. We utilize computer-generated holograms to sculpt electron wavefunctions in a standard transmission electron microscope in 3D, and demonstrate the formation of electron beams exhibiting high intensity along specific trajectories as well as shaping the beam into a 3D lattice of hot-spots. The concepts presented here are similar to those used in light optics for trapping and tweezing of particles, but at atomic scale resolutions.
authors.affiliation: School of Electrical Engineering, Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel. Electronic address: royshilo@post.tau.ac.il.
authors.forename: Roy
authors.initials: R
authors.lastname: Shiloh
authors.affiliation: School of Electrical Engineering, Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv, Israel.
authors.forename: Ady
authors.initials: A
authors.lastname: Arie
keywords: Amplitude masks; Computer generated holograms; Electron microscopy; Particle manipulation; Synthesis; Trapping