scholarly journals Coherent phenomena in terahertz 2D plasmonic structures: strong coupling, plasmonic crystals, and induced transparency by coupling of localized modes

2014 ◽  
Author(s):  
Gregory C. Dyer ◽  
Gregory R. Aizin ◽  
S. James Allen ◽  
Albert D. Grine ◽  
Don Bethke ◽  
...  
Nanoscale ◽  
2021 ◽  
Author(s):  
Matthew Pelton ◽  
S. David Storm ◽  
Haixu Leng

Correction for ‘Strong coupling of emitters to single plasmonic nanoparticles: exciton-induced transparency and Rabi splitting’ by Matthew Pelton et al., Nanoscale, 2019, 11, 14540–14552, DOI: 10.1039/C9NR05044B.


Author(s):  
Huan Jin ◽  
Wu Yu ◽  
Feng Long ◽  
Min Yu ◽  
Qiyang Han ◽  
...  

The design and R&D for ITER In-Vessel Coils (IVCs) is being deployed. The concerned issue of “Edge Localized Modes” (ELMs) and “Vertical Stabilization” (VS) of the ITER plasma can be addressed by the implemented IVCs. The ELM and VS coils will be installed in the vessel just behind the blanket shield modules to reach the requirement of keeping strong coupling with the plasma. The 59mm Stainless Steel Jacketed Mineral Insulated Conductor (SSMIC) using MgO as the insulation is being designed for the IVCs to resist the special challenges, including the nuclear radiation, high temperature, electromagnetic and thermal fatigue. It is necessary to take the mechanical performances of the SSMIC and the feasibility of fabrication techniques into consideration of the R&D program. The mechanical performances of the SSMIC close to the actual work conditions, including the three point bend modulus, three point bend cyclical performance and the cyclical performance with a U-bend sample of the SSMIC prototypes have been investigated and the results are presented in this paper.


Nanophotonics ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 1821-1833 ◽  
Author(s):  
Cristian Ciracì ◽  
Radoslaw Jurga ◽  
Muhammad Khalid ◽  
Fabio Della Sala

AbstractCoupling between electromagnetic cavity fields and fluorescent molecules or quantum emitters can be strongly enhanced by reducing the cavity mode volume. Plasmonic structures allow light confinement down to volumes that are only a few cubic nanometers. At such length scales, nonlocal and quantum tunneling effects are expected to influence the emitter interaction with the surface plasmon modes, which unavoidably requires going beyond classical models to accurately describe the electron response at the metal surface. In this context, the quantum hydrodynamic theory (QHT) has emerged as an efficient tool to probe nonlocal and quantum effects in metallic nanostructures. Here, we apply state-of-the-art QHT to investigate the quantum effects on strong coupling of a dipole emitter placed at nanometer distances from metallic particles. A comparison with conventional local response approximation (LRA) and Thomas-Fermi hydrodynamic theory results shows the importance of quantum effects on the plasmon-emitter coupling. The QHT predicts qualitative deviation from LRA in the weak coupling regime that leads to quantitative differences in the strong coupling regime. In nano-gap systems, the inclusion of quantum broadening leads to the existence of an optimal gap size for Rabi splitting that minimizes the requirements on the emitter oscillator strength.


Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 75 ◽  
Author(s):  
Tan ◽  
Plum ◽  
Singh

Diffraction of light in periodic structures is observed in a variety of systems including atoms, solid state crystals, plasmonic structures, metamaterials, and photonic crystals. In metamaterials, lattice diffraction appears across microwave to optical frequencies due to collective Rayleigh scattering of periodically arranged structures. Light waves diffracted by these periodic structures can be trapped along the metamaterial surface resulting in the excitation of surface lattice resonances, which are mediated by the structural eigenmodes of the metamaterial cavity. This has brought about fascinating opportunities such as lattice-induced transparency, strong nearfield confinement, and resonant field enhancement and line-narrowing of metamaterial structural resonances through lowering of radiative losses. In this review, we describe the mechanisms and implications of metamaterial-engineered surface lattice resonances and lattice-enhanced field confinement in terahertz metamaterials. These universal properties of surface lattice resonances in metamaterials have significant implications for the design of resonant metamaterials, including ultrasensitive sensors, lasers, and slow-light devices across the electromagnetic spectrum.


Nanoscale ◽  
2019 ◽  
Vol 11 (31) ◽  
pp. 14540-14552 ◽  
Author(s):  
Matthew Pelton ◽  
S. David Storm ◽  
Haixu Leng

This Feature Article reviews theory and experiments for quantum-mechanical strong coupling between excitons and plasmons in single metal nanostructures.


Nanophotonics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 3409-3418 ◽  
Author(s):  
Koichi Okamoto ◽  
Kota Okura ◽  
Pangpang Wang ◽  
Sou Ryuzaki ◽  
Kaoru Tamada

AbstractWe propose a unique random metal nanohemisphere on mirror (NHoM) structure to tune the surface plasmon (SP) resonance in a flexible manner. The SP resonance peak was split into two peaks owing to the strong coupling between the SP mode in the metal nanohemisphere and the mirror image mode generated in the metal substrate. This phenomenon is based on the fact that the strong coupling and the induced electromagnetic effects are similar to those pertaining to the Rabi splitting, Fano resonance, and electromagnetically induced transparency, thus providing quantum effect analogies. These phenomena have recently attracted increased attention and have been studied with nanocavities fabricated with top-down nanotechnologies. Compared with previous reports, NHoM structures can be fabricated in a much easier manner and are tunable in rather wider wavelength regions without nanofabrication technologies. The SP resonance peaks were enhanced, sharpened dramatically, and tuned flexibly, based on the optimization of the thickness of the spacer layer between the metal hemisphere and metal substrate. Experimental results were reproduced and were explained based on finite difference time domain (FDTD) simulations. These phenomena have never been observed previously on similar nanosphere on mirror (NSoM) because nanohemispherical structures were required. The NHoM nanocavity structure has a quality factor >200 that is surprisingly high for the localized SP mode of nanoparticles. Flexible tuning of the SP resonance with the use of NHoM is envisaged to lead to the development of new applications and technologies in the field of plasmonics and nanophotonics.


2014 ◽  
Vol 20 (3) ◽  
pp. 218-225
Author(s):  
周海涛 ZHOU Hai-tao ◽  
武晋泽 WU Jin-ze ◽  
王红丽 WANG Hong-li ◽  
刘超 LIU Chao ◽  
张俊香 ZHANG Jun-xiang

2013 ◽  
Vol 7 (11) ◽  
pp. 925-930 ◽  
Author(s):  
Gregory C. Dyer ◽  
Gregory R. Aizin ◽  
S. James Allen ◽  
Albert D. Grine ◽  
Don Bethke ◽  
...  

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