Title :
Design and fabrication of plasmonic nanostructures for spectroscopic applications
Author :
Kravchenko, Aleksandr ; Khakimov, Roman ; Shevchenko, Andriy ; Priimagi, Arri ; Kaivola, Matti ; Ovchinnikov, Viktor
Author_Institution :
Dept. of Appl. Phys., Aalto Univ., Aalto, Finland
Abstract :
This work is focused on the design and fabrication of plasmonic nanostructures for spectroscopic applications. Our goal is to fabricate large-surface-area plasmonic nanostructures that provide local enhancement of electromagnetic fields for applications in fluorescence and Raman scattering spectroscopy. Periodic two-dimensional arrays of nanogrooves and nanopillars are obtained by holographic photolithography that makes use of surface relief gratings on azo-polymer films. Numerical calculations are performed to optimize the geometrical and material parameters of the structures in order to maximize the field enhancement factor.
Keywords :
diffraction gratings; holography; nanofabrication; nanophotonics; optical arrays; optical fabrication; optical films; optical polymers; periodic structures; photolithography; plasmonics; polymer films; Raman scattering spectroscopy; azo-polymer films; electromagnetic field local enhancement; fluorescence spectroscopy; geometrical parameters; holographic photolithography; large-surface-area plasmonic nanostructures; material parameters; periodic two-dimensional nanogroove arrays; periodic two-dimensional nanopillar arrays; surface relief gratings; Fabrication; Films; Metals; Nanostructures; Optical surface waves; Plasmons; Silicon;
Conference_Titel :
Information Optics (WIO), 2010 9th Euro-American Workshop on
Conference_Location :
Helsinki
Print_ISBN :
978-1-4244-8226-9
Electronic_ISBN :
978-1-4244-8227-6
DOI :
10.1109/WIO.2010.5582498
