Cheap free-electron lasers on the horizon
- 1 January 1993
- journal article
- other
- Published by IOP Publishing in Physics World
- Vol. 6 (1) , 25-26
- https://doi.org/10.1088/2058-7058/6/1/22
Abstract
Smith–Purcell radiation has been observed from relativistic electrons for the first time, offering the possibility of compact free-electron lasers in the far-infrared spectral region. In 1953 at Harvard, S J Smith and Edward Purcell passed 300 keV electrons over a metallic grating and observed visible radiation.Keywords
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