Atomic resolution holography using advanced reconstruction techniques for two-dimensional detectors

M. Markó, G. Krexner, J. Schefer, A. Szakál, L. Cser

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16 Citations (Scopus)

Abstract

Atomic resolution holography is based on two concepts. Either the emitter of the radiation used is embedded in the sample (internal source concept) or, on account of the optical reciprocity law, the detector forms part of the sample (internal detector concept). In many cases, holographic objects (atoms and nuclei) simultaneously adopt the roles of both source and detector. Thus, the recorded image contains a mixture of both inside source and inside detector holograms. When reconstructing one type of hologram, the presence of the other hologram causes serious distortions. In the present work, we propose a new method, the so-called double reconstruction (DR), which not only suppresses the mutual distortions but also exploits the information content of the measured hologram more effectively. This novel approach also decreases the level of distortion arising from diffraction and statistical noise. The efficiency of the DR technique is significantly enhanced by employing two-dimensional (2D) area detectors. The power of the method is illustrated here by applying it to a real measurement on a palladium-hydrogen sample.

Original languageEnglish
Article number063036
JournalNew Journal of Physics
Volume12
DOIs
Publication statusPublished - Jun 30 2010

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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