In-Line Holography Using Low-Energy Electrons and Photons; Applications for Manipulation on a Nanometer Scale

Copyright © (1995) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics

The setup of in-line holography is used to obtain electron and photon holograms with high magnification from various samples. Electron holograms are obtained by using the coherent beam of low-energy electrons that originates from the electron point-source tip. Light optical holograms are generated for comparison using a divergent laser beam. In both cases the numerical reconstruction of the holograms yields the wave front at the sample. The LEEPS microscope has been modified by incorporating an additional tip for manipulating the sample under observation. With this manipulating tip, individual nanometer-sized wires have been contacted, and an electrical current has been passed through carbon fibers as well as through carbon nanotubes while observing the holographic electron pattern in situ.

By: Heinz Schmid, Hans-Werner Fink (Gattikon, Switz.) and Juergen Kreuzer (Dalhousie Univ., Canada)

Published in: Journal of Vacuum Science and Technology B, volume 13, (no 6), pages 2428-31 in 1995

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