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Proceedings Paper

Anomalous refraction of infrared waves through ultrathin all dielectric metasurfaces
Author(s): R. A. Vieira; T. F. Simões de Castro ; V. F. Rodriguez-Esquerre
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Paper Abstract

A multipeak Metasurfaces are the two dimensional equivalents of bulk metamaterials [1, 2], which represent a sudden variation of optical properties when an incident wave interacts with it, yielding the most exotic optical phenomena, such as broadband absorption, wavefront shaping or the anomalous refraction and reflection. This paper proposes, through simulations, a model of a purely dielectric metasurface without losses, allowing the incident wave’s global phase control, from - π to π, for operation on optical frequencies (1.55 μm) by inserting structures that have contrasting refractive indexes. To demonstrate the phase control, a linear phase profile has been utilized to cause the anomalous refraction phenomena, which has applications in wireless optical communications.

Paper Details

Date Published: 6 September 2017
PDF: 6 pages
Proc. SPIE 10343, Metamaterials, Metadevices, and Metasystems 2017, 1034339 (6 September 2017); doi: 10.1117/12.2292471
Show Author Affiliations
R. A. Vieira, Univ. Federal da Bahia (Brazil)
T. F. Simões de Castro , Univ. Federal da Bahia (Brazil)
V. F. Rodriguez-Esquerre, Univ. Federal da Bahia (Brazil)

Published in SPIE Proceedings Vol. 10343:
Metamaterials, Metadevices, and Metasystems 2017
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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