Atomic‐resolution electron holography – a realization of gabor's dream?

Research News: Three‐dimensional atomic‐resolution images of copper atoms have recently been produced by the computer reconstruction of superimposed far‐field (Fraunhofer) interference patterns generated by electron scattering by individual atoms in the sample. The use of photoelectron sources lends holography chemical specificity and enables the location of atoms around chemically identifiable species to be imaged separately. The historical development of electron holography is described and some examples of the latest achievements given.