THE PROBLEM OF ABSORPTION IN THE FRESNEL FRINGE ANALYSIS

SCHUHRKE, T and ZWECK, J and HOFFMANN, H (1995) THE PROBLEM OF ABSORPTION IN THE FRESNEL FRINGE ANALYSIS. ULTRAMICROSCOPY, 58 (3-4). pp. 319-325. ISSN 0304-3991,

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Abstract

Fresnel fringes at interfaces of Co/Cu, Fe/Tb and Au/Fe multilayers were simulated using a multislice algorithm in connection with a continuum model. The intensity profiles of a defocus series were calculated by treating the absorption in different ways. A first simulation uses absorption in the calculations. These simulated intensities were divided by the intensity of the in-focus image. This ''division method'' results in shapes of fringe intensities different from those of a second simulation using no absorption. This outcome is important because the division method is widely used to get rid of absorption in experimentally observed images. In a system like Co/Cu where the absorption difference between the individual materials is small there is no need for a division because the simulations with and without absorption are very similar.

Item Type: Article
Uncontrolled Keywords: ROUGHNESS;
Depositing User: Dr. Gernot Deinzer
Last Modified: 19 Oct 2022 08:37
URI: https://pred.uni-regensburg.de/id/eprint/52522

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