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Proceedings Paper

Nano-antenna elements for controlling optical phase
Author(s): Yuval Yifat; Michal Eitan; Zeev Iluz; Amir Boag; Yael Hanein; Jacob Scheuer
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Paper Abstract

We demonstrate the use of nano-antenna unit cells composed of coupled dipole and patch elements over a reflective back plane, which are designed to control the phase of a reflected optical beam. The antennas were studied both numerically and experimentally and allow exact control over the output phase in the range of 00-3600. Several diffractive optical applications are shown numerically and experimentally: Blazed gratings which allow deflection of the output beam to high reflection angles show very high diffraction efficiency, and arbitrary wave shapes such as computer generated holograms can be formed with very high efficiency and large angles relative to the incident beam. The optical conversion efficiency was measured to be above 40% for all applications.

Paper Details

Date Published: 19 February 2014
PDF: 7 pages
Proc. SPIE 8994, Photonic and Phononic Properties of Engineered Nanostructures IV, 899416 (19 February 2014); doi: 10.1117/12.2038799
Show Author Affiliations
Yuval Yifat, Tel Aviv Univ. (Israel)
Michal Eitan, Tel Aviv Univ. (Israel)
Zeev Iluz, Tel Aviv Univ. (Israel)
Amir Boag, Tel Aviv Univ. (Israel)
Yael Hanein, Tel Aviv Univ. (Israel)
Jacob Scheuer, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 8994:
Photonic and Phononic Properties of Engineered Nanostructures IV
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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