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
Controlling the near-field oscillations of loaded plasmonic nanoantennas
Martin Schnell,Aitzol García-Etxarri,Andreas J. Huber,Kenneth B. Crozier,Javier Aizpurua,Rainer Hillenbrand +5 more
TL;DR: In this article, the authors use scattering-type near-field microscopy to monitor the evolution of the near field oscillations of infrared gap antennas progressively loaded with metallic bridges of varying size.
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Preparation and Characterization of Gold Nanoshells Coated with Self-Assembled Monolayers
TL;DR: In this paper, the authors describe the functionalization of the surfaces of gold nanoshells with self-assembled monolayers derived from the adsorption of a series of alkanethiols.
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Room temperature plasmon laser by total internal reflection
TL;DR: In this article, a room temperature semiconductor plasmon laser with both strong cavity feedback and optical confinement to 1/20th of the wavelength was reported, where the strong feedback arises from total internal reflection of surface plasmons, while the confinement enhances the spontaneous emission rate by up to 20 times.
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Nanoparticle printing with single-particle resolution
Tobias Kraus,Tobias Kraus,Laurent Malaquin,Heinz Schmid,Walter Riess,Nicholas D. Spencer,Heiko Wolf +6 more
TL;DR: This work has developed a novel printing process that enables positioning of sub-100-nm particles individually with high placement accuracy and can create a variety of particle arrangements including lines, arrays and bitmaps, while preserving the catalytic and optical activity of the individual nanoparticles.
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Plasmon emission in photoexcited gold nanoparticles
E. Dulkeith,T. Niedereichholz,Thomas A. Klar,Jochen Feldmann,G. von Plessen,David I. Gittins,K. S. Mayya,Frank Caruso +7 more
TL;DR: In this article, the particle plasmon frequency was observed in optically excited spherical gold nanoparticles and a photoluminescence efficiency of 10 − 6 was determined. But this was independent of particle size and four orders of magnitude higher than the efficiencies determined from metal films.