Angle-resolved surface-enhanced Raman scattering on metallic nanostructured plasmonic crystals.
Surface-enhanced Raman scattering is an ideal tool for identifying molecules from the "fingerprint" of their molecular bonds; unfortunately, this process lacks a full microscopic understanding and, practically, is plagued with irreproducibility. Using nanostructured metal surfaces, we demonstrate strong correlations between plasmon resonances and Raman enhancements. Evidence for simultaneous ingoing and outgoing resonances in wavelength and angle sheds new light on the Raman enhancement process, allowing optimization of a new generation of reproducible Raman substrates.
Baumberg
Jeremy J
JJ
School of Physics and Astronomy, and School of Chemistry, University of Southampton, Southampton, U.K. baumberg@phys.soton.ac.uk
Kelf
Timothy A
TA
Sugawara
Yoshihiro
Y
Cintra
Suzanne
S
Abdelsalam
Mamdouh E
ME
Bartlett
Phillip N
PN
Russell
Andrea E
AE