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Nano Lett. 2012 Mar 14;12(3):1702-6. doi: 10.1021/nl300204s. Epub 2012 Feb 27.

Out-of-plane reflection and refraction of light by anisotropic optical antenna metasurfaces with phase discontinuities.

Author information

1
School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

Abstract

Experiments on ultrathin anisotropic arrays of subwavelength optical antennas display out-of-plane refraction. A powerful three-dimensional (3D) extension of the recently demonstrated generalized laws of refraction and reflection shows that the interface imparts a tangential wavevector to the incident light leading to anomalous beams, which in general are noncoplanar with the incident beam. The refracted beam direction can be controlled by varying the angle between the plane of incidence and the antenna array.

PMID:
22335616
DOI:
10.1021/nl300204s
[Indexed for MEDLINE]

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