6533b7ddfe1ef96bd12746f0

RESEARCH PRODUCT

Self Calibrating Nano-Ruler

Jan Becker

subject

Longitudinal modeLength scaleNanorulerPlasmonic nanoparticlesMaterials sciencePhysics::OpticsParticleSPHERESMolecular physicsRefractive indexPlasmon

description

The aim of a nanoruler is to measure distances on a length scale in the order of nanometers. This concept can be realized by two plasmonic nanoparticles (usually spheres), which are placed within a short distance to each other. Since the plasmon modes of both particles are coupled, they influence each other along the interparticle axis (i.e. longitudinal plasmon mode, resulting in a shift of the resonance wavelength compared to the single particle. Because the resulting resonance wavelength depends on the interparticle distance, the spectral investigation of such a dimer allows the determination of the interparticle distance.

https://doi.org/10.1007/978-3-642-31241-0_11