title: Observation of self-amplified spontaneous emission and exponential growth at 530 nm
abstract: Experimental evidence for self-amplified spontaneous emission (SASE) at 530 nm is reported. The measurements were made at the low-energy undulator test line facility at the Advanced Photon Source, Argonne National Laboratory. The experimental setup and details of the experimental results are presented, as well as preliminary analysis. This experiment extends to shorter wavelengths the operational knowledge of a linac-based SASE free-electron laser and explicitly shows the predicted exponential growth in intensity of the optical pulse as a function of length along the undulator.
authors.affiliation: Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
authors.initials: SV
authors.lastname: Milton
authors.initials: E
authors.lastname: Gluskin
authors.initials: SG
authors.lastname: Biedron
authors.initials: RJ
authors.lastname: Dejus
authors.lastname: Den Hartog PK
authors.initials: JN
authors.lastname: Galayda
authors.initials: K
authors.lastname: Kim
authors.initials: JW
authors.lastname: Lewellen
authors.initials: ER
authors.lastname: Moog
authors.initials: V
authors.lastname: Sajaev
authors.initials: NS
authors.lastname: Sereno
authors.initials: G
authors.lastname: Travish
authors.initials: NA
authors.lastname: Vinokurov
authors.initials: ND
authors.lastname: Arnold
authors.initials: C
authors.lastname: Benson
authors.initials: W
authors.lastname: Berg
authors.initials: JA
authors.lastname: Biggs
authors.initials: M
authors.lastname: Borland
authors.initials: JA
authors.lastname: Carwardine
authors.initials: Y
authors.lastname: Chae
authors.initials: G
authors.lastname: Decker
authors.initials: BN
authors.lastname: Deriy
authors.initials: MJ
authors.lastname: Erdmann
authors.initials: H
authors.lastname: Friedsam
authors.initials: C
authors.lastname: Gold
authors.initials: AE
authors.lastname: Grelick