Imaging charged objects using low-energy-electron coherent beams

Ultramicroscopy. 2001 Nov;90(1):33-8. doi: 10.1016/s0304-3991(01)00124-3.

Abstract

The microscopic shapes, unobservable by conventional electron optics, of objects surrounded by electrostatic fields are observed. The method directly uses electron-coherent-beam imaging concepts and is successfully applied to recently developed low-energy-electron projection holography. Experimental demonstrations on objects charged in a controlled way like a biased metallic tip as well as on a self-charging insulator object are shown.