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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Proceedings ArticleDOI
Design of optical nanoantennas with the surface integral equation method of moments
TL;DR: In this paper, it is shown that almost frequency independent directivity patterns can be obtained over a large bandwidth for judiciously designed log-periodic nano-antennas.
Book ChapterDOI
Principles of surface-enhanced Raman spectroscopy
TL;DR: In this paper , the authors guide the reader through the principles of SERS, including the electromagnetic field enhancement and chemical enhancement, with emphasis on the surface plasmon resonance effect.
Journal ArticleDOI
The impact of nanoantennas on ring resonators' performance
TL;DR: In this article, the nanoantennas were used to improve the performance of ring resonators, leading to more reliable results as the quality factor, the bandwidth and the extinction ratio.
Proceedings ArticleDOI
Dark and bright modes manipulation for plasmon-triggered photonic devices
Simone Panaro,Adnan Nazir,Carlo Liberale,Haisong Wang,Haisong Wang,F. De Angelis,R. Proietti Zaccaria,E. Di Fabrizio,Andrea Toma +8 more
TL;DR: In this paper, a rod-like nanostructure is coupled to an aligned nanoantenna dimer to induce the near-field activation of an anti-bonding dark mode.
Journal ArticleDOI
Broadband optical Ta2O5 antennas for directional emission of light.
Henna Farheen,Viktor Quiring,Christof Eigner,Thomas Zentgraf,Stefan Linden,Jens Förstner,Viktor Myroshnychenko +6 more
TL;DR: In this article , the authors design and optimize three distinct broadband traveling-wave tantalum pentoxide antennas exhibiting highly directional characteristics, which are excited by a dipole emitter placed in the feed gap between the two elements.
References
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Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
Shuming Nie,Steven R. Emory +1 more
TL;DR: In this article, surface-enhanced Raman scattering was used to detect single molecules and single nanoparticles at room temperature with the use of surface enhanced Raman, and the intrinsic Raman enhancement factors were on the order of 10 14 to 10 15, much larger than the ensemble-averaged values derived from conventional measurements.
Journal ArticleDOI
Plasmonics for improved photovoltaic devices
Harry A. Atwater,Albert Polman +1 more
TL;DR: Recent advances at the intersection of plasmonics and photovoltaics are surveyed and an outlook on the future of solar cells based on these principles is offered.