High-temporal contrast using low-gain optical parametric amplification.
We demonstrate the use of low-gain optical parametric amplification (OPA) as a means of improving temporal contrast to a detection-limited level 10(-10). 250 microJ, 500 fs pulses of 1053 nm are frequency doubled and subsequently restored to the original wavelength by OPA with >10% efficiency.
Shah
Rahul C
RC
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Johnson
Randall P
RP
Shimada
Tsutomu
T
Flippo
Kirk A
KA
Fernandez
Juan C
JC
Hegelich
B M
BM