6533b826fe1ef96bd1284574

RESEARCH PRODUCT

Plasmon-driven nondiffracting surface beaming

Zoran JakšićJuan Jose MiretSlobodan VukovićCarlos J. Zapata-rodríguezDavid Pastor

subject

PhysicsDiffractionbusiness.industrySurface plasmonPlane waveNanophotonicsPhysics::Optics02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesSurface plasmon polariton010309 opticsTransverse planeOptics0103 physical sciencesPolariton0210 nano-technologybusinessPlasmon

description

We introduce diffraction-free plasmonic waves in metal-dielectric surfaces which are the analogue to nondiffracting Bessel beams in free space. By interfering multiple converging plane waves with controlled phase matching, we generate a subwavelength transverse spot located at the boundaries of a 1D plasmonic lattice. The diffraction-free beam is resonantly transmitted through the stratiform medium leading not only to light confinement but also to wave enhancement assisted by surface plasmons polaritons. To conclude, we briefly analyze other types of localized surface modes which were proposed recently.

https://doi.org/10.1109/icton.2011.5971069