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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.
Oksana Kostiučenko,Till Leißner,Jonathan R. Brewer,Tomas Tamulevičius,Sigitas Tamulevičius,Jacek Fiutowski, andHorst-Günter Rubahn
"Local field enhanced second-harmonic response of organic nanofibers deposited on encapsulated plasmonic substrates", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 954711 (28 August 2015); https://doi.org/10.1117/12.2189478
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Oksana Kostiučenko, Till Leißner, Jonathan R. Brewer, Tomas Tamulevičius, Sigitas Tamulevičius, Jacek Fiutowski, Horst-Günter Rubahn, "Local field enhanced second-harmonic response of organic nanofibers deposited on encapsulated plasmonic substrates," Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 954711 (28 August 2015); https://doi.org/10.1117/12.2189478