Nanoantennas for visible and infrared radiation.
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
Semiconductor Bow-Tie Nanoantenna from Coupled Colloidal Quantum Dot Molecules
Jiabin Cui,Somnath Koley,Yossef E. Panfil,Adar Levi,Nir Waiskopf,Sergei Remennik,Meirav Oded,Uri Banin +7 more
TL;DR: In this paper, the bow-tie nano-antenna was synthesized by selective tip-to-tip fusion of two tetrahedral colloidal quantum dots (CQDs) forming a dimer.
Journal ArticleDOI
All-optical self-switching with ultralow incident laser intensity assisted by a bound state in the continuum.
Zhanghua Han,Yangjian Cai +1 more
TL;DR: In this paper, an array of slotted silicon disks is used as a void antenna to excite the quasi-BIC (QBIC) mode by a linearly polarized plane wave.
Journal ArticleDOI
Magneto-Optics Effects: New Trends and Future Prospects for Technological Developments
TL;DR: Magneto-optics (MO) is an effervescent research field, with a wide range of potential industrial applications including sensing, theranostics, pharmaceutics, magnetometry, and spectroscopy, among others as mentioned in this paper .
Journal ArticleDOI
Mode Evolution in Strongly Coupled Plasmonic Dolmens Fabricated by Templated Assembly
Valentin Flauraud,Gabriel D. Bernasconi,Jérémy Butet,Massimo Mastrangeli,Duncan T. L. Alexander,Olivier J. F. Martin,Juergen Brugger +6 more
TL;DR: In this paper, a topographically templated assembly of single-crystal colloidal gold nanorods into trimers, with a dolmen geometry, is presented, which enables the precise positioning of high-quality nanorod, with gaps as small as 1.5 nm, which permits a gradual and controlled symmetry breaking by tuning the arrangement of these strongly coupled nanostructures.
Journal ArticleDOI
Nanoantenna structures for the detection of phonons in nanocrystals.
Alexander G. Milekhin,Sergei A. Kuznetsov,I. A. Milekhin,Larisa L. Sveshnikova,T. A. Duda,E. E. Rodyakina,Alexander V. Latyshev,Volodymyr Dzhagan,Dietrich R. T. Zahn +8 more
TL;DR: The maximum SEIRA enhancement was observed for linear nanoantennas with optimized structural parameters determined from the electromagnetic simulations, and the frequency position of the feature’s absorption seen in theSEIRA response evidences that the NC surface and transverse optical phonons are activated in the infrared spectra.
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.
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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.