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.
Highlights
In recent years, considerable efforts have been devoted to developing photonic materials that exhibit large nonlinearity and ultrafast response at 1550 nm for all-optical switching processing (AOSP) devices that can be used in future optical communication systems [1,2,3,4]
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
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 third harmonic generation (THG) signals in the hybrid organic-plasmonic nanostructure are experimentally observed
Summary
Considerable efforts have been devoted to developing photonic materials that exhibit large nonlinearity and ultrafast response at 1550 nm for all-optical switching processing (AOSP) devices that can be used in future optical communication systems [1,2,3,4]. Metallic nanoparticle-doped nanocomposites and hybrid dielectric-plasmonic photonic crystals have been demonstrated recently [11,12] This approach has several intrinsic drawbacks such as limited tunability of resonant wavelengths, large optical loss, and relatively small volume of hot spots. 2. Theoretical investigation of surface-plasmon-enhanced THG emission The device structure is schematically shown, which consists of 2-D arrays of Au patches on top of a glass substrate coated by a polymer thin film. Theoretical investigation of surface-plasmon-enhanced THG emission The device structure is schematically shown, which consists of 2-D arrays of Au patches on top of a glass substrate coated by a polymer thin film In these hybrid organicplasmonic devices, polymer(AJBC 1725) based on an anionic polymethine salt was used as the nonlinear medium to provide the THG effect. The concentrated electric field in the 2D Au nanopatch array covers almost the entire Au patch surface and extends deeply into the polymer layer, resulting in a relatively uniform electric field enhancement over a large volume
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
