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Observation of self-amplified spontaneous emission in the mid-infrared in a free-electron laser

Prazeres, R. and Ortega, J.M. and Glotin, F. and Jaroszynski, D.A. and Marcouille, O. (1997) Observation of self-amplified spontaneous emission in the mid-infrared in a free-electron laser. Physical Review Letters, 78 (11). pp. 2124-2127. ISSN 0031-9007

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Abstract

We have produced and analyzed self-amplified spontaneous emission emitted by a relativistic electron beam passing through an undulator for the first time in the mid-infrared. The spectral behavior of the line exhibits an unexpected growth at the start-up of the process.