Second harmonic generation from patterned GaAs inside a subwavelength metallic hole array.
By extending GaAs dielectric posts with a large second-order nonlinear susceptibility through the holes of a subwavelength metallic hole array coupled to the metal surface-plasma wave, strong second harmonic (SH) signal is observed. The SH signal is strengthened as a result of the enhanced electromagnetic fields inside the hole apertures.
Fan
Wenjun
W
Zhang
Shuang
S
Malloy
K J
KJ
Brueck
S R J
SR
Panoiu
N C
NC
Osgood
R M
RM