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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.

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Citations
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Journal ArticleDOI

Light Propagation with Phase Discontinuities: Generalized Laws of Reflection and Refraction

TL;DR: In this article, a two-dimensional array of optical resonators with spatially varying phase response and subwavelength separation can imprint phase discontinuities on propagating light as it traverses the interface between two media.
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Surface plasmon resonance in gold nanoparticles: a review.

TL;DR: The general overview of the field and the background for appropriate modelling of the physical phenomena are provided and the current state of the art and most recent applications of plasmon resonance in Au NPs are reported.
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Strong coupling between surface plasmon polaritons and emitters: a review

TL;DR: This review looks at the concepts and state-of-the-art concerning the strong coupling of surface plasmon-polariton modes to states associated with quantum emitters such as excitons in J-aggregates, dye molecules and quantum dots.
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Progress in optics

TL;DR: The last volume of the Progress in Optics series as discussed by the authors contains seven chapters on widely diverging topics, written by well-known authorities in their fields, including laser selective photophysics and photochemistry, laser phase profile generation, laser beamforming, and laser laser light emission from high-current surface spark discharges.
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All-dielectric optical nanoantennas

TL;DR: Control of light at the nanoscale is demanding for future successful on-chip integration and most optical nanoantennas consist of plasmonic nanoparticles due to their ability to capture and concentrate visible light at subwavelength dimensions.
References
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Journal ArticleDOI

Babinet’s principle for optical frequency metamaterials and nanoantennas

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

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.
Journal ArticleDOI

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.
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