We demonstrate the possibility to efficiently deflect a light beam by varying the refractive index inside resonant contiguous subwavelength slits carved on an opaque metallic substrate in the enhanced transmission regime. The enhanced transmission process combines with the phase mismatch of the surface waves propagating along the metal surface and field localization phenomena to allow controlled transmittance and beam deflection.
Beam steering from resonant subwavelength slits filled with a nonlinear material / Vincenti, Maria A.; D'Orazio, Antonella; Buncick, Milan; Akozbek, Neset; Bloemer, Mark J.; Scalora, Michael. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 26:2(2009), pp. 301-307. [10.1364/JOSAB.26.000301]
Beam steering from resonant subwavelength slits filled with a nonlinear material
D'Orazio, Antonella;
2009-01-01
Abstract
We demonstrate the possibility to efficiently deflect a light beam by varying the refractive index inside resonant contiguous subwavelength slits carved on an opaque metallic substrate in the enhanced transmission regime. The enhanced transmission process combines with the phase mismatch of the surface waves propagating along the metal surface and field localization phenomena to allow controlled transmittance and beam deflection.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.