6533b838fe1ef96bd12a5049
RESEARCH PRODUCT
Propagation of Dyakonon Wave-Packets at the Boundary of Metallodielectric Lattices
Juan Jose MiretSlobodan VukovićJ. A. SorniCarlos J. Zapata-rodríguezsubject
PhysicsBirefringenceElectromagnetic wave propagationCondensed matter physicsWave propagationWave packetSurface plasmonIsotropyNanophotonicsPhysics::OpticsSurface plasmonsDissipationPolarization (waves)01 natural sciencesAtomic and Molecular Physics and Optics010309 opticsSurface wave0103 physical sciencesElectrical and Electronic Engineering010306 general physicsÓpticadescription
We rigorously analyze the propagation of localized surface waves that takes place at the boundary between a semi-infinite layered metal-dielectric (MD) nanostructure cut normally to the layers and a isotropic medium. It is demonstrated that Dyakonov-like surface waves (also coined dyakonons) with hybrid polarization may propagate in a wide angular range. As a consequence, dyakonon-based wave-packets (DWPs) may feature sub-wavelength beamwidths. Due to the hyperbolic-dispersion regime in plasmonic crystals, supported DWPs are still in the canalization regime. The apparent quadratic beam spreading, however, is driven by dissipation effects in metal. This work was supported by the Spanish Ministry of Economy and Competitiveness under Project TEC2009-11635 and by the Qatar National Research Fund under Project NPRP 09-462-1-074.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-05-01 |