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Elektronenmikroskopie

Electron microscopy: The Ernst Ruska Centre

With the Ernst Ruska Centre (ER-C), Forschungszentrum Jülich and RWTH Aachen University operate a centre of excellence for atomic-resolution electron microscopy and spectroscopy on the highest international level.

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Unique Insights into the Nanoworld

The arrangement of atoms inside a material determines its electrical, magnetic, optical and mechanical properties. An understanding of atomic structure in materials is therefore key to understanding fundamental physical processes and developing new applications. For both scientific and technological progress, the ability to visualize and study the details of the atomic world is essential. Modern electron microscopes make this possible. More: Unique Insights into the Nanoworld …
Elektronenmikroskop

The Know-How Behind Ultrahigh-Resolution Electron Microscopes

Whereas in an optical microscope a beam of electromagnetic radiation – light – illuminates a specimen, in an electron microscope accelerated electrons perform this task. The beam path is similar in both cases. However, in the electron microscope the formation and interpretation of images is much more complicated. Even the correction of electron microscope lens optics does not allow for direct imaging of the world of atoms, as quantum physics plays a key role in these dimensions. Intuitive image interpretation is not always possible and sophisticated computer programs are required for image analysis and simulation.

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