SURFACE-PLASMON OPTO-ELECTROCHEMISTRY

In this work we present a new, highly sensitive optical technique for studying electrochemistry. Optical excitation of a surface-plasmon res onance (SPR) is used to probe the working electrode/electrolyte interf ace in an electrochemical cell. The use of acousto-optics then provide s a differential technique for monitoring the SPR position. This allow s optical changes at the electrode/electrolyte interface to be very se nsitively measured as cyclic voltammetry is performed.