Dramatic enhancement of third-harmonic generation in three-dimensional photonic crystals.
We have observed a dramatic enhancement of third-harmonic generation in 3D polystyrene-air photonic crystals pumped by a near infrared laser beam. As the pump wavelength is tuned, the peak of the enhancement occurs when the third-harmonic wavelength approaches the short-wavelength edge of the band gap. We show that the origin of the enhancement is phase matching provided by the periodic structure of the photonic crystals.
Markowicz
Przemyslaw P
PP
The Institute for Lasers, Photonics and Biophotonics, Departments of Chemistry and Physics, University at Buffalo, State University of New York at Buffalo, Buffalo, New York 14260, USA.
Tiryaki
Hanifi
H
Pudavar
Haridas
H
Prasad
Paras N
PN
Lepeshkin
Nick N
NN
Boyd
Robert W
RW