In this work, enhancement of the second harmonic response of organic nanofibers deposited on encapsulated and robust plasmonic active substrate is experimentally demonstrated. Organic nanofibers grown from functionalized paraquaterphenylene (CNHP4) molecules have been transferred on lithographically defined regular arrays of gold nanostructures, which subsequently have been coated with thin films of diamond-like carbon with 25, 55 and 100 nm thickness. Femtosecond laser scanning microscopy enables us to identify enhancement of the second harmonic response of the fibers. This is facilitated by a preservation of the field enhancement effects, which appear on the nanostructures and remain significant on top of the coating layer.
|Conference||SPIE: Plasmonics: Metallic Nanostructures and Their Optical Properties XIII|
|Period||09/08/2015 → 13/08/2015|
- Local field enhancement, Second Harmonic Generation, Organic Nanofibers, Laser Scanning Microscopy, Organic-plasmonic hybrids, Diamond-like carbon