6533b874fe1ef96bd12d6280

RESEARCH PRODUCT

Diffraction-managed superlensing using metallodielectric heterostructures

Carlos J. Zapata-rodríguezMaría Teresa Caballero CaballeroDavid PastorJuan Jose Miret

subject

DiffractionPhysicsSuperlensbusiness.industrySuperlatticePhysics::OpticsHeterojunctionDielectricImagingWavelengthPlasmonic devicesOpticsNegative refractionSuper-resolutionOptoelectronicsbusinessPlasmonÓptica

description

We show that subwavelength diffracted wave fields may be managed inside multilayered plasmonic devices to achieve ultra-resolving lensing. For that purpose we first transform both homogeneous waves and a broad band of evanescent waves into propagating Bloch modes by means of a metal/dielectric (MD) superlattice. Beam spreading is subsequently compensated by means of negative refraction in a plasmon-induced anisotropic effective-medium that is cemented behind. A precise design of the superlens doublet may lead to nearly aberration-free images with subwavelength resolution in spite of using optical paths longer than a wavelength. This research was funded by the Spanish Ministry of Economy and Competitiveness under the project TEC2009-11635.

yearjournalcountryeditionlanguage
2012-05-01
10.1117/12.921882http://hdl.handle.net/10045/35724