Universität zu Köln

Dregely, Daniel, Lindfors, Klas ORCID: 0000-0002-6482-5605, Lippitz, Markus ORCID: 0000-0003-1218-6511, Engheta, Nader, Totzeck, Michael and Giessen, Harald ORCID: 0000-0002-4270-3850 (2014). Imaging and steering an optical wireless nanoantenna link. Nat. Commun., 5. LONDON: NATURE PUBLISHING GROUP. ISSN 2041-1723

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Abstract

Optical nanoantennas tailor the transmission and reception of optical signals. Owing to their capacity to control the direction and angular distribution of optical radiation over a broad spectral range, nanoantennas are promising components for optical communication in nanocircuits. Here we measure wireless optical power transfer between plasmonic nanoantennas in the far-field and demonstrate changeable signal routing to different nanoscopic receivers via beamsteering. We image the radiation pattern of single-optical nanoantennas using a photoluminescence technique, which allows mapping of the unperturbed intensity distribution around plasmonic structures. We quantify the distance dependence of the power transmission between transmitter and receiver by deterministically positioning nanoscopic fluorescent receivers around the transmitting nanoantenna. By adjusting the wavefront of the optical field incident on the transmitter, we achieve directional control of the transmitted radiation over a broad range of 29 degrees. This enables wireless power transfer from one transmitter to different receivers.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dregely, Daniel UNSPECIFIED UNSPECIFIED UNSPECIFIED Lindfors, Klas UNSPECIFIED orcid.org/0000-0002-6482-5605 UNSPECIFIED Lippitz, Markus UNSPECIFIED orcid.org/0000-0003-1218-6511 UNSPECIFIED Engheta, Nader UNSPECIFIED UNSPECIFIED UNSPECIFIED Totzeck, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Giessen, Harald UNSPECIFIED orcid.org/0000-0002-4270-3850 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-435409
DOI:	10.1038/ncomms5354
Journal or Publication Title:	Nat. Commun.
Volume:	5
Date:	2014
Publisher:	NATURE PUBLISHING GROUP
Place of Publication:	LONDON
ISSN:	2041-1723
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ENERGY-TRANSFER; GENERATION; NANOPARTICLE; ENHANCEMENT; ELECTRONICS; PLASMONICS; NANOWIRES; MOLECULES; EMISSION; LIGHT Multiple languages Multidisciplinary Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/43540