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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Optical antennas for tunable enhancement in tip-enhanced Raman spectroscopy imaging
TL;DR: In this paper, a fabrication method based on focused ion beam milling was proposed to realize optical antennas with desired lengths, and they measured the resonances of these fabricated antennas and performed TERS imaging of carbon nanotubes to demonstrate antenna length dependence on plasmonic resonance.
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Nanophotonic Approaches for Chirality Sensing.
Lauren A. Warning,Ali Rafiei Miandashti,Lauren A. McCarthy,Qingfeng Zhang,Christy F. Landes,Stephan Link +5 more
TL;DR: In this article, the development of chiral nanomaterials and their application for detecting biomolecules, supramolecular structures, and other environmental stimuli are reviewed, and single-particle spectroscopic methods for achieving the ultimate goal of single-molecule chirality sensing are presented.
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Plasmon-assisted Förster resonance energy transfer at the single-molecule level in the moderate quenching regime
Johann Bohlen,Alvaro Cuartero-González,Enrico Pibiri,Daja Ruhlandt,Antonio I. Fernández-Domínguez,Philip Tinnefeld,Guillermo P. Acuna,Guillermo P. Acuna +7 more
TL;DR: The results allow us to conclude that, despite the plasmon-assisted Purcell enhancement experienced by donor and acceptor partners, the gold nanoparticles in the authors' samples have a negligible effect on the FRET rate, which in turns yields a reduction of the transfer efficiency.
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Light at the End of the Tunnel
Markus Parzefall,Lukas Novotny +1 more
TL;DR: In this paper, tunnel junctions have reemerged as promising candidates for the transduction of electrical to optical signals at the nanoscale, which is known as inelastic electr...
Journal ArticleDOI
Plasmonic mid-infrared third harmonic generation in germanium nanoantennas
Marco P. Fischer,Aaron Riede,Kevin Gallacher,Jacopo Frigerio,Giovanni Pellegrini,Michele Ortolani,Douglas J. Paul,Giovanni Isella,Alfred Leitenstorfer,Paolo Biagioni,Daniele Brida,Daniele Brida +11 more
TL;DR: A plasmonic nanoantenna using highly-doped germanium grown on silicon substrates, which acts as an ultrafast, tunable nonlinear light source when it is excited by a laser, capable of third harmonic generation – the creation of a light wave with a tripled frequency - allowing for enhanced interaction of light and molecules in the Mid-infrared.
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