Title :
Plasmonic coupling of SiO2-Ag “post-cap” nanostructures and silver film for surface-enhanced Raman scattering
Author :
Wu, Hsin-Yu ; Cunningham, Brian T.
Author_Institution :
Nana Sensors Group, Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
Abstract :
We demonstrate a surface-enhanced Raman scattering (SERS) substrate consisting of SiO2-Ag "post-cap" nanostructures with an underlying silver film. Optimized coupling between free-standing Ag caps and the underlying silver film results in a maximum enhancement factor of 2.38×109.
Keywords :
Raman spectra; nanostructured materials; plasmonics; silicon compounds; silver; surface plasmons; Ag; SiO2; nanostructures; optimized coupling; plasmonic coupling; silver film; surface-enhanced Raman scattering; Films; Glass; Nanostructures; Plasmons; Raman scattering; Silver; Substrates;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
