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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Journal ArticleDOI
Photoluminescence enhancement of monolayer MoS2 using plasmonic gallium nanoparticles
Sergio Catalán-Gómez,Sourav Garg,Andrés Redondo-Cubero,N. Gordillo,Alicia de Andrés,Flavio Nucciarelli,Flavio Nucciarelli,Seonsing Kim,Patrick Kung,Jose Luis Pau +9 more
TL;DR: In this paper, gallium hemispherical nanoparticles (Ga NPs) were used to enhance the photoluminescence of molybdenum disulphide (MoS2) monolayers.
Journal ArticleDOI
Hollow plasmonic antennas for broadband SERS spectroscopy.
Gabriele Messina,Mario Malerba,Pierfrancesco Zilio,Ermanno Miele,Michele Dipalo,Lorenzo Ferrara,Francesco De Angelis +6 more
TL;DR: Developing multiband plasmonic antennas, which are suitable for highly sensitive surface enhanced Raman spectroscopy (SERS) and are activated by a wide range of excitation wavelengths, indicates that these structures are potential candidates for plAsmonic enhancers in multifunctional opto-electronic biosensors.
Journal ArticleDOI
Influence of exciton dimensionality on spectral diffusion of single-walled carbon nanotubes.
Xuedan Ma,Oleksiy Roslyak,Feng Wang,Juan G. Duque,Andrei Piryatinski,Stephen K. Doorn,Han Htoon +6 more
TL;DR: A simple model is developed to explain two different spectral diffusion behaviors in the framework of quantum-confined Stark effect caused by surface charges trapped in the vicinity of SWCNTs, indicating that excitonic emission mainly originates from nanometer range regions and excitons appear to be localized.
Journal ArticleDOI
A resonant scanning dipole-antenna probe for enhanced nanoscale imaging.
TL;DR: A scanning antenna probe that provides 35 nm optical hotspots with a 16-fold excitation enhancement is presented, useful for both nanoscale plasmonic mode imaging and (bio)imaging.
Journal ArticleDOI
Nanocouplers for Infrared and Visible Light
TL;DR: In this article, the physical principles of operation of the devices based on a tapered waveguide section, a direct coupler, a lens, and a scatterer are discussed.
References
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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.