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RESEARCH PRODUCT

Direct observation of localized surface plasmon coupling

Joachim R. KrennEric BourillotAlain DereuxC. GirardFranz R. AusseneggJean-claude WeeberB. SchiderAlfred LeitnerJ. P. Goudonnet

subject

Materials sciencebusiness.industrySurface plasmonNanophotonicsPhysics::OpticsCondensed Matter::Mesoscopic Systems and Quantum Hall EffectMolecular physicsSurface plasmon polaritonlaw.inventionlawOptoelectronicsSurface plasmon resonanceScanning tunneling microscopebusinessPlasmonElectron-beam lithographyLocalized surface plasmon

description

We report on the direct observation of localized surface plasmon coupling using a photon scanning tunneling microscope. The surface plasmons are excited in gold nanostructures tailored by electron beam lithography. Electromagnetic energy transfer from a resonantly excited nanoparticle to a nanowire, which is not directly excited by the incident light is observed. Our experimental results appear to be in good agreement with theoretical computations based on Green's dyadic technique.

https://doi.org/10.1103/physrevb.60.5029