6533b820fe1ef96bd1279a9e

RESEARCH PRODUCT

Mapping the polarization pattern of plasmon modes reveals nanoparticle symmetry.

Luigi CarboneJan BeckerInga ZinsCarsten SönnichsenYuriy KhalavkaOlaf SchubertTetyana Provalska

subject

Materials scienceSilverPhysics::OpticsMetal NanoparticlesBioengineeringElectronMolecular physicslaw.inventionOpticsMicroscopy Electron TransmissionlawPhysics::Atomic and Molecular ClustersGeneral Materials ScienceAnisotropySpectroscopyPlasmonbusiness.industryMechanical EngineeringGeneral ChemistryPolarizerCondensed Matter PhysicsPolarization (waves)AnisotropyNanorodGoldbusinessLocalized surface plasmon

description

We study the wavelength and polarization dependent plasmon resonances of single silver and gold nanorods, triangles, cubes, and dimers with a novel single particle spectroscopy method (RotPOL). In RotPOL, a rotating wedge-shaped polarizer encodes the full polarization information of each particle within one image. This reveals the symmetry of the particles and their plasmon modes, allows analyzing inhomogeneous samples and the monitoring of particle shape changes during growth in situ.

10.1021/nl801179ahttps://pubmed.ncbi.nlm.nih.gov/18590314