Surprisingly long-range surface-enhanced Raman scattering (SERS) on Au-Ni multisegmented nanowires.

ABSTRACT: Very long range surface-enhanced Raman scattering is observed from a nickel nanowire that is separated by 120 nm from a pair of gold nanodisks. The excitation of the surface-plasmon resonance (SPR) from the gold nanodisk pair generates an enhanced electromagnetic field near the nickel segment (SEM, left), leading to Raman intensity greater than the nickel alone (right).

SUBMITTER: Wei W 

PROVIDER: S-EPMC3241531 | biostudies-literature | 2009

REPOSITORIES: biostudies-literature