Characterization of a high-gain harmonic-generation free-electron laser at saturation

Characterization of a high-gain harmonic-generation free-electron laser at saturation

We report on an experimental investigation characterizing the output of a high-gain harmonic-generation (HGHG) free-electron laser (FEL) at saturation. A seed CO2 laser at a wavelength of 10.6 microm was used to generate amplified FEL output at 5.3 microm. Measurement of the frequency spectrum, puls...

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Veröffentlicht in:Physical review letters 2001-06, Vol.86 (26 Pt 1), p.5902-5905
Hauptverfasser: Doyuran, A, Babzien, M, Shaftan, T, Yu, L H, DiMauro, L F, Ben-Zvi, I, Biedron, S G, Graves, W, Johnson, E, Krinsky, S, Malone, R, Pogorelsky, I, Skaritka, J, Rakowsky, G, Wang, X J, Woodle, M, Yakimenko, V, Jagger, J, Sajaev, V, Vasserman, I
Format: Artikel
Sprache:eng
Schlagworte:
ADVANCED PHOTON SOURCE
ENGINEERING
FREE ELECTRON LASERS
HARMONIC GENERATION
SATURATION
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Zusammenfassung:We report on an experimental investigation characterizing the output of a high-gain harmonic-generation (HGHG) free-electron laser (FEL) at saturation. A seed CO2 laser at a wavelength of 10.6 microm was used to generate amplified FEL output at 5.3 microm. Measurement of the frequency spectrum, pulse duration, and correlation length of the 5.3 microm output verified that the light is longitudinally coherent. Investigation of the electron energy distribution and output harmonic energies provides evidence for saturated HGHG FEL operation.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.86.5902