Observation of stimulated emission at high gyroharmonics: basis for a synchrotron resonance maser

First experimental observations are reported on stimulated coherent synchrotron radiation from highly relativistic electrons in a strong magnetic field. The experiment employed a quasioptical millimeter-wave resonator and a 6-MeV electron beam gyrating in a field of up to 25 kG. Coherent radiation a...

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Bibliographic Details
Published in:Physical review letters 2001-10, Vol.87 (15), p.158301-158301, Article 158301
Main Authors: Wang, M, Ganguly, A K, Hirshfield, J L
Format: Article
Language:English
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Summary:First experimental observations are reported on stimulated coherent synchrotron radiation from highly relativistic electrons in a strong magnetic field. The experiment employed a quasioptical millimeter-wave resonator and a 6-MeV electron beam gyrating in a field of up to 25 kG. Coherent radiation at 54 GHz, corresponding to the 11th gyroharmonic, was observed and characterized. These observations demonstrate the possibility of a synchrotron resonance maser.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.158301