Calculation of universal scaling function for free-electron-laser gain

A variational calculation of free-electron-laser gain in the exponential regime, before saturation is presented using a dispersion relation incorporating the energy spread, emittance, and focusing of the electron beam, and the diffraction and guiding of the radiation. Rapid computation facilitates f...

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Veröffentlicht in:Physical review letters 1990-06, Vol.64 (25), p.3011-3014
Hauptverfasser: YU, L. H, KRINSKY, S, GLUCKSTERN, R. L
Format: Artikel
Sprache:eng
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Zusammenfassung:A variational calculation of free-electron-laser gain in the exponential regime, before saturation is presented using a dispersion relation incorporating the energy spread, emittance, and focusing of the electron beam, and the diffraction and guiding of the radiation. Rapid computation facilitates free-electron-laser design optimization. Results are expressed in a universal scaled form. (Author)
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.64.3011