Practical aspects of electron holography

David C. Joy, Y. S. Zhang, X. Zhang, T. Hashimoto, R. D. Bunn, L. Allard, T. A. Nolan

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The electron-optical parameters required to generate an electron hologram are discussed. It is shown that the new generation of commercial field emission transmission electron microscopes (FEG TEM) meet the conditions required. Practical details of the procedures to set up and record a hologram are described. The steps necessary to reconstruct the hologram are also discussed and an outline is provided of a program for the Apple Macintosh personal computer which implements these operations. The integrity and accuracy of the reconstruction program has been tested by means of a detailed simulation of high-resolution holograms starting from dynamical multi-slice calculations of the exit wavefront.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalUltramicroscopy
Volume51
Issue number1-4
DOIs
StatePublished - Jun 1993

Funding

The authors are grateful to Prof. H. Lichte and Dr. A. Tonomura for valuable discussions, and to Dr. R. Kilaas for his assistance with Mac-Tempas TM. This work was sponsored in part by the Laboratory-Directed Research and Development Program of Oak Ridge National Laboratory, managed by Martin Marietta Energy Systems Inc., for the United States Department of Energy under contract DE-AC05-840R21400.

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