A nanofabricated regular array of coupled gold nanopillars is employed to detect local indices of refraction of different liquids using a shift of an antisymmetric plasmon resonance peak observed in the reflection spectra. The peak's spectral position is found to be a unique function of the local refractive index for a wide range of indices. We discuss possible applications of the fabricated nanostructured arrays in bio- and chemical sensors. (c) 2006 American Institute of Physics.
|Number of pages||3|
|Journal||Applied Physics Letters|
|Publication status||Published - 20 Mar 2006|