title: Polarization switchable diffraction based on subwavelength plasmonic nanoantennas.
abstract: We prove theoretically and experimentally the concept of polarization holography by producing visible diffraction through radiation emitted by plasmonic nanoantennas. We show a methodology to selectively activate the nanoantenna emission by controlling the orientation of the electric field of a beam. Additionally, we demonstrate that it is possible to superpose two independent transverse nanoantennas in the same plane without producing interference in their radiated field. Hence, we introduce an alternative view to the traditional concept of holography where fringes (or diffractive units) are band-limited to half the wavelength.
authors.affiliation: Electrical Engineering Division, Department of Engineering, University of Cambridge , 9 JJ Thomson Avenue, Cambridge CB3 0FA, United Kingdom.
authors.forename: Yunuen
authors.initials: Y
authors.lastname: Montelongo
authors.forename: Jaime O
authors.initials: JO
authors.lastname: Tenorio-Pearl
authors.forename: William I
authors.initials: WI
authors.lastname: Milne
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Wilkinson