6533b86dfe1ef96bd12c9f77
RESEARCH PRODUCT
Excitation of a one-dimensional evanescent wave by conical edge diffraction of surface plasmon
Alain DereuxGérard Colas Des FrancsAlexandre BouhelierJean-claude WeeberJohann Berthelotsubject
DiffractionPhysicsTotal internal reflectionbusiness.industrySurface plasmon02 engineering and technology021001 nanoscience & nanotechnologyPolarization (waves)01 natural sciencesElectromagnetic radiationSurface plasmon polaritonAtomic and Molecular Physics and OpticsOpticsSurface wave0103 physical sciences[ SPI.NANO ] Engineering Sciences [physics]/Micro and nanotechnologies/MicroelectronicsSurface plasmon resonance[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics010306 general physics0210 nano-technologybusinessdescription
International audience; The experimental observation of a one-dimensional evanescent wave supported by a 90◦ metal edge is reported. Through a measurement of in-plane momenta, we clearly demonstrate the dimensional character of this surface wave and show that it is non-radiative in the superstrate. Excitation conditions, lateral extension and polarization properties of this wave are discussed. Finally, we explore the effect of the surrounding dielectric medium and demonstrate that a single edge can sustain distinct excitations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-03-14 |