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RESEARCH PRODUCT
Off-Resonant Optical Excitation of Gold Nanorods: Nanoscale Imprint of Polarization Surface Charge Distribution
Xuan ZhouClaire DeebPrashant K. JainRenaud BachelotAlexandre BouhelierOlivier SopperaDavy GérardPascal RoyerJérôme Plainsubject
Materials sciencesurface charge densityAnalytical chemistryPhysics::Optics02 engineering and technologyDielectric010402 general chemistry01 natural sciencesplasmonicspolymer cross-linkingElectric fieldoptical properties of metal nanoparticlesGeneral Materials ScienceSurface chargePhysical and Theoretical ChemistryPolarization (electrochemistry)ComputingMilieux_MISCELLANEOUSPlasmonbusiness.industryCharge density[CHIM.MATE]Chemical Sciences/Material chemistry021001 nanoscience & nanotechnology0104 chemical sciences[ CHIM.POLY ] Chemical Sciences/Polymers[CHIM.POLY]Chemical Sciences/Polymers[ CHIM.MATE ] Chemical Sciences/Material chemistrypolymerizationOptoelectronicsNanorodnanorods0210 nano-technologybusinessExcitationdescription
International audience; We report on the nanoscale optical characterization of gold nanorods irradiated out of their plasmonic resonance. Our approach is based on the reticulation of a photopolymerizable formulation locally triggered by enhanced electromagnetic fields. The tiny local field enhancement stems from the surface polarization charges associated with the electric field discontinuity at the metal/dielectric interface. This allows us to get a nanoscale signature of the spatial distribution of the surface charge density in metallic nanoparticles irradiated off-resonance.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 | The Journal of Physical Chemistry Letters |