| Résumé | The idea of atomic-resolution holography has its roots in the X-ray work of Bragg1 and in Gabor's electron interference microscope2. Gabor's lensless microscope was not realized in his time, but over the past twelve years there has been a steady increase in the number of reports on atomic-resolution holography. All of this work involves the use of electrons3, 4, 5, 6 or hard X-rays7, 8, 9, 10, 11 to produce the hologram. Neutrons are often unique among scattering probes in their interaction with materials: for example, the relative visibility of hydrogen and its isotopes is a great advantage in the study of polymers and biologically relevant materials. Recent work12 proposed that atomic-resolution holography could be achieved with thermal neutrons. Here we use monochromatic thermal neutrons, adopting the inside-source concept of Sz�ke13, to image planes of oxygen atoms located above and below a single hydrogen atom in the oxide mineral simpsonite14. |
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