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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Measurement of the complex dielectric constant of a single gold nanoparticle
TL;DR: A differential interference contrast microscopy technique that employs a photonic crystal fiber as a white-light source is used to measure both the real and the imaginary part of the complex dielectric constant of single 10 and 15 nm gold nanoparticles over a wavelength range of 480 to 610 nm.
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Status and prospects for metallic and plasmonic nano-lasers [Invited]
TL;DR: A remarkable miniaturization of lasers has occurred in just the past few years by employing metals to form the laser resonator and the optical mode is far smaller than allowed by the diffraction limit as discussed by the authors.
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Recent progress in photoemission microscopy with emphasis on chemical and magnetic sensitivity
W. Swiech,Gerhard H. Fecher,Ch. Ziethen,Oliver G. Schmidt,Gerd Schönhense,K. Grzelakowski,Claus M. Schneider,R. Frömter,Hans Peter Oepen,J. Kirschner +9 more
TL;DR: In this paper, a combination of elemental selectivity and magnetic sensitivity is achieved by using circularly polarized soft X-rays and exploiting the effect of magnetic circular dichroism, which obtains information about the magnetic state of individual chemical components within the sample.
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Single emitters coupled to plasmonic nano-antennas: angular emission and collection efficiency
TL;DR: In this paper, the angular emission of a single emitter near a metallic nanoparticle was studied by experiments and numerical calculations, and it was shown that large changes in the angular emissions of the molecule occur due to the coupling to the particle.
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Real-Time TEM Imaging of the Formation of Crystalline Nanoscale Gaps
Douglas R. Strachan,Danvers E. Johnston,Beth S. Guiton,Sujit S. Datta,Peter K. Davies,Dawn A. Bonnell,A. T. Charlie Johnson +6 more
TL;DR: These measurements provide insight into the electromigration induced failure mechanism in sub-20 nm size interconnects, indicating that the current density at failure increases as the width decreases to approximately 1 nm.