Non-Destructive Imaging of Individual Tobacco Mosaic Visions (IMAGE)
Caption
In low-energy electron holography an atomically sharp metal tip acts as source of a divergent beam of low-energy electrons. It represents a coherent spherical wave front with a wavelength of the order of 1 Angstrom. This beam impinges onto the object and part of the beam will be scattered by the object and a part will not be affected. At a distant detector we record the interference pattern arising from the interaction of these two beams. This interference pattern is called a hologram. The availability of the phase information encoded in the hologram enables an unambiguous recovery of the structure of the object.
Credit
T. Latychevskaia/University of Zurich, Switzerland
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