Experimental results on resonantly excited second-harmonic generation (SHG) in a periodic ionically self-assembled monolayer (ISAM) film are reported. A double-layer guided-mode resonance filter (GMRF) structure is coated with 40 bilayers of pyrlium-based χYAG laser. Enhanced second-harmonic conversion in the ISAM film is achieved because of the local field enhancement associated with the fundamental resonating leaky mode. This method of SHG is particularly promising, as the ISAM films under investigation exhibit anomalous dispersion that may be applied for phase matching to improve nonlinear conversion efficiency.
© 2004 Optical Society of America
(160.5470) Materials : Polymers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(230.1950) Optical devices : Diffraction gratings
(230.4320) Optical devices : Nonlinear optical devices
Georgeanne Purvinis, Purnomo S. Priambodo, Martin Pomerantz, Ming Zhou, Theresa A. Maldonado, and Robert Magnusson, "Second-harmonic generation in resonant waveguide gratings incorporating ionic self-assembled monolayer polymer films," Opt. Lett. 29, 1108-1110 (2004)