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Article: Sizing up atoms with electron holograms. (using lensless electron projectors to create images of atoms)
- Article from:
- Science News
- Article date:
- September 28, 1991
- Author:
CopyrightCOPYRIGHT 1991 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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In their ongoing quest to see the all-but-invisible, physicists have developed a method for using patterns of scattered electrons to observe the three-dimensional atomic textures of materials. In this emerging technology, called electron holography, investigators exploit the wave-like properties of electrons to make their observations (SN: 10/15/88, p.252).
Now scientists have used a lensless electron projector to discern the arrangement of atoms in several types of materials. In the Sept. 16 PHYSICAL REVIEW LETTERS, Hans-Werner Fink and Heinz Schmid of IBM's Zurich (Switzerland) Research Laboratory and their colleagues describe the technique and the ...
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