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 language | English |
---|---|
Pages (from-to) | 1-14 |
Number of pages | 14 |
Journal | Ultramicroscopy |
Volume | 51 |
Issue number | 1-4 |
DOIs | |
State | Published - 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.