It is shown that by the use of image processing techniques, side-band topographic images of the type described by Cullis and Maher [Ultramicroscopy 1 (1975) 97] can be obtained. A displaced "electronic filter" is used on the Fourier transform of the image to introduce the contrast. The final reconstructed image shows characteristics similar to those obtained in the TEM with displaced apertures.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics