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Proceedings Paper

Optical nano-antennas: a new approach for optical imaging and detection
Author(s): Jacob Scheuer; Inbal Freidler; Yuval Yifat; Zeev Iluz; Michal Eitan; Yael Hanein; Amir Boag
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Paper Abstract

We study theoretically and experimentally the IR emission properties from gold nano-antenna arrays. A new characterization method based on far field measurements only is developed and presented. Excellent agreement in terms of resonance frequencies, optical bandwidth, and emission efficiency is found between the experimental results and a theoretical analysis based on finite element modeling of the arrays. Extremely high overall emission efficiencies, exceeding 95%, are obtained experimentally. The high efficiency and the simple far-field characterization scheme presented here can facilitate the employment of such nano-antennas for numerous applications in imaging, spectroscopy, and solar energy harvesting.

Paper Details

Date Published: 24 January 2011
PDF: 7 pages
Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 794528 (24 January 2011); doi: 10.1117/12.872902
Show Author Affiliations
Jacob Scheuer, Tel Aviv Univ. (Israel)
Inbal Freidler, Tel Aviv Univ. (Israel)
Yuval Yifat, Tel Aviv Univ. (Israel)
Zeev Iluz, Tel Aviv Univ. (Israel)
Michal Eitan, Tel Aviv Univ. (Israel)
Yael Hanein, Tel Aviv Univ. (Israel)
Amir Boag, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 7945:
Quantum Sensing and Nanophotonic Devices VIII
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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