CIFICEN   24414
CENTRO DE INVESTIGACIONES EN FISICA E INGENIERIA DEL CENTRO DE LA PROVINCIA DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
Control of the diffracted response of a metallic wire array with double period: experimental demonstration
Autor/es:
DIANA CARINA SKIGIN; JASON FOWLKES; NICK ROBERTS; LUC√ćA SCAFFARDI; DANIEL SCHINCA; MARCELO LESTER,
Revista:
OPTICS LETTERS
Editorial:
OPTICAL SOC AMER
Referencias:
Lugar: Washington; Año: 2014 vol. 39 p. 5693 - 5693
ISSN:
0146-9592
Resumen:
In recent papers, it has been theoretically shown that by using dual-period wire gratings, it is possible to control the relative efficiencies of the diffracted orders, regardless of the wires? material, incident polarization and wavelength. In this Letter, we experimentally demonstrate, for the first time, that by appropriately choosing the geometrical parameters of a nanometric periodic structure, it is possible to control the optical response in the visible range. We show examples of nanostructures designed to cancel out or to intensify a particular diffraction order. Such nanostructures allow a broad control over the directionality and the intensity of the diffracted light, which makes them useful for applications such as highly directional optical nanoantennas and photonic multiplexers.
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