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Article: Electron holography on a crystal canvas.
- Article from:
- Science News
- Article date:
- September 1, 1990
- Author:
CopyrightCOPYRIGHT 1990 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Electron holography on a crystal canvas
Surface scientist expend a great deal of effort pinpointing the locations of atoms on or near a material's surface--a task they would find easier and more revealing if they could obtain three-dimensional images with enough resolution to depict the atoms' precise locations. That capability now seems within reach.
For the first time, a team of researchers has reconstructed a surface's three-dimensional crystal structure from the pattern generted by electrons emitted from surface atoms. The results prove that a diffraction pattern produced by such electrons can be interpreted as a hologram -- the electron-generated ...