An Ag film exhibits an enhanced Raman signal over unusually large areas due to surface plasmons around its nanoholes. The SERS signal is increased by optical interference effects and the uniformity of the signal is improved by electrical activation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.