Observation of self-amplified spontaneous emission and exponential growth at 530 nm
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.
Milton
SV
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Gluskin
E
Biedron
SG
Dejus
RJ
Den Hartog PK
Galayda
JN
Kim
K
Lewellen
JW
Moog
ER
Sajaev
V
Sereno
NS
Travish
G
Vinokurov
NA
Arnold
ND
Benson
C
Berg
W
Biggs
JA
Borland
M
Carwardine
JA
Chae
Y
Decker
G
Deriy
BN
Erdmann
MJ
Friedsam
H
Gold
C
Grelick
AE