First ultraviolet high-gain harmonic-generation free-electron laser.
We report the first experimental results on a high-gain harmonic-generation (HGHG) free-electron laser (FEL) operating in the ultraviolet. An 800 nm seed from a Ti:sapphire laser has been used to produce saturated amplified radiation at the 266 nm third harmonic. The results confirm the predictions for HGHG FEL operation: stable central wavelength, narrow bandwidth, and small pulse-energy fluctuation.
Yu
L H
LH
National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, USA. lhyu@bnl.gov
DiMauro
L
L
Doyuran
A
A
Graves
W S
WS
Johnson
E D
ED
Heese
R
R
Krinsky
S
S
Loos
H
H
Murphy
J B
JB
Rakowsky
G
G
Rose
J
J
Shaftan
T
T
Sheehy
B
B
Skaritka
J
J
Wang
X J
XJ
Wu
Z
Z