title: Characterization of a high-gain harmonic-generation free-electron laser at saturation.
abstract: 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.
authors: Brookhaven National Laboratory, Upton, New York 11973, USA.
authors: A
authors: A
authors: Doyuran
authors: M
authors: M
authors: Babzien
authors: T
authors: T
authors: Shaftan
authors: L H
authors: LH
authors: Yu
authors: L F
authors: LF
authors: DiMauro
authors: I
authors: I
authors: Ben-Zvi
authors: S G
authors: SG
authors: Biedron
authors: W
authors: W
authors: Graves
authors: E
authors: E
authors: Johnson
authors: S
authors: S
authors: Krinsky
authors: R
authors: R
authors: Malone
authors: I
authors: I
authors: Pogorelsky
authors: J
authors: J
authors: Skaritka
authors: G
authors: G
authors: Rakowsky
authors: X J
authors: XJ
authors: Wang
authors: M
authors: M
authors: Woodle
authors: V
authors: V
authors: Yakimenko
authors: J
authors: J
authors: Jagger
authors: V
authors: V
authors: Sajaev
authors: I
authors: I
authors: Vasserman