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RESEARCH PRODUCT
Subwavelength beams with polarization singularities in plasmonic metamaterials
Carlos J. Zapata-rodríguezLuis Enrique Martínez MartínezMaría Teresa Caballero CaballeroJuan Jose Miretsubject
DiffractionPhysicsAngular momentumFilling factorbusiness.industryCondensed Matter PhysicsPolarization (waves)Atomic and Molecular Physics and Opticssymbols.namesakeOpticsArtificially engineered materialssymbolsGravitational singularitybusinessNanoscopic scaleDiffractionMathematical PhysicsBessel functionPlasmonSingular opticsÓpticadescription
We investigated the diffraction behavior of plasmonic Bessel beams propagating in metal-dielectric stratified materials and wire media. Our results reveal various regimes in which polarization singularities are selectively maintained. This polarization-pass effect can be controlled by appropriately setting the filling factor of the metallic inclusions and its internal periodic distribution. These results may have implications in the development of devices at the nanoscale level for manipulation of polarization and angular momentum of cylindrical vector beams. This research was funded by the Spanish Ministry of Economy and Competitiveness under the project TEC2011-29120-C05-01.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-09-19 |