Phys. Rev. Lett. 36, 717–720 (1976)Observation of Stimulated Emission of Radiation by Relativistic Electrons in a Spatially Periodic Transverse Magnetic Field
See accompanying Physics Focus Gain has been observed for optical radiation at 10.6 μm due to stimulated radiation by a relativistic electron beam in a constant spatially periodic transverse magnetic field. A gain of 7% per pass was obtained at an electron current of 70 mA. The experiments indicate the possibility of a new class of tunable high-power free-electron lasers. © 1976 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.36.717
DOI:
10.1103/PhysRevLett.36.717
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