An antisymmetric plasmon resonance in coupled gold nanoparticles as a sensitive tool for detection of local index of refraction

Abstract

A nanofabricated regular array of coupled gold nano-pillars 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 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.

16 pages, 4 figures

References in corpus (4)

• Nanofabricated media with negative permeability at visible frequencies
• Plasmon-assisted Quantum Entanglement
• Resonant light interaction with plasmonic nanowire systems
• Optomagnetic composite medium with conducting nanoelements

Cited by in corpus (3)

• Sensitivity of Collective Plasmon Modes of Gold Nanoresonators to Local Environment
• Negative Refractive Index in Artificial Metamaterials
• Nanometric laser trapping based on nanostructured substrates