Nanoantennas for visible and infrared radiation.
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TLDR
The role of plasmonic resonances on the performance of nanoantennas and the influence of geometrical parameters imposed by nanofabrication are discussed.Abstract:
Nanoantennas for visible and infrared radiation can strongly enhance the interaction of light with nanoscale matter by their ability to efficiently link propagating and spatially localized optical fields. This ability unlocks an enormous potential for applications ranging from nanoscale optical microscopy and spectroscopy over solar energy conversion, integrated optical nanocircuitry, opto-electronics and density-of-states engineering to ultra-sensing as well as enhancement of optical nonlinearities. Here we review the current understanding of metallic optical antennas based on the background of both well-developed radiowave antenna engineering and plasmonics. In particular, we discuss the role of plasmonic resonances on the performance of nanoantennas and address the influence of geometrical parameters imposed by nanofabrication. Finally, we give a brief account of the current status of the field and the major established and emerging lines of investigation in this vivid area of research.read more
Citations
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References
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Journal ArticleDOI
Babinet’s principle for optical frequency metamaterials and nanoantennas
Thomas Zentgraf,T. P. Meyrath,A. Seidel,Stefan Kaiser,Harald Giessen,Carsten Rockstuhl,Falk Lederer +6 more
TL;DR: In this paper, Babinet's principle for metamaterials at optical frequencies was considered and realistic conditions which deviate from the theoretical assumptions of the classic principle such as an infinitely thin and perfectly conducting metal layer were considered.
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Nanomechanical control of an optical antenna
J. Merlein,M. Kahl,Annika Zuschlag,Alexander Sell,A. Halm,Johannes Boneberg,Paul Leiderer,Alfred Leitenstorfer,Rudolf Bratschitsch +8 more
TL;DR: In this paper, the response of a bow-tie-shaped antenna is tuned by precisely moving one half of the bow tie, which can be used to tune the response to a specific application.
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A silicon-based electrical source of surface plasmon polaritons.
TL;DR: It is demonstrated that a silicon-based electrical source for SPPs can be fabricated using established microtechnology processes that are compatible with backend CMOS technology.
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Single-molecule imaging by optical absorption
TL;DR: In this paper, high-sensitive absorption spectroscopy is used to image the presence of single molecules through their weak optical absorption signatures, and measurements are demonstrated at mutiple wavelengths and scanned over a 2D area to create spatial maps of absorption.
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Precise semiconductor nanowire placement through dielectrophoresis.
TL;DR: The ability to precisely control the alignment and placement of large numbers of InAs nanowires from solution onto very narrow, prepatterned electrodes using dielectrophoresis is demonstrated.