Picosecond nonlinear optical response of a Cu:silica nanocluster composite.
We describe the picosecond nonlinear optical response of a metal-dielectric composite made by implanting Cu ions in fused silica. The implanted Cu ions aggregate during implantation to form nanometer-diameter clusters in a dense, thin (~150 nm) layer just beneath the surface of the substrate. The third-order susceptibility X((3)) has an electronic component with a magnitude of the order of 10(-8) esu and is enhanced for laser wavelengths near the surface plasmon resonance of the copper colloids.
Haglund
R F
RF
Yang
L
L
Magruder Iii
R H
RH
Wittig
J E
JE
Becker
K
K
Zuhr
R A
RA