title: Enhanced third harmonic generation by organic materials on high-Q plasmonic photonic crystals.
abstract: The enhanced optical nonlinearity enabled by localized plasmonic fields has been well studied for all-optical switching processing (AOSP) devices for future optical communication systems. In this work, plasmonic photonic crystals with a nonlinear polycarbonate/polymethine blend cladding layer are designed to enhance the third harmonic generation (THG) at the telecom wavelengths (~1550 nm). Due to the presence of he two-dimensional (2-D) gold nano-patch arrays with improved Q-factor and high local fields, more than 20 × of enhanced THG signals in the hybrid organic-plasmonic nanostructure are experimentally observed. The enhanced THG in the hybrid organic-plasmonic materials suggested that such extraordinary nonlinear effects can be used for AOSP devices and wavelength conversion.
authors.forename: Fanghui
authors.initials: F
authors.lastname: Ren
authors.forename: Xiangyu
authors.initials: X
authors.lastname: Wang
authors.forename: Zhong'an
authors.initials: Z
authors.lastname: Li
authors.forename: Jingdong
authors.initials: J
authors.lastname: Luo
authors.forename: Sei-Hum
authors.initials: SH
authors.lastname: Jang
authors.forename: Alex K-Y
authors.initials: AK
authors.lastname: Jen
authors.forename: Alan X
authors.initials: AX
authors.lastname: Wang