scholarly journals Strong coupling in hyperbolic metamaterials

2014 ◽  
Vol 90 (4) ◽  
Author(s):  
Prashant Shekhar ◽  
Zubin Jacob
Keyword(s):  
Strong Coupling ◽  
Hyperbolic Metamaterials

scholarly journals Strong Coupling, Hyperbolic Metamaterials and Optical Tamm States in Layered Dielectric-Plasmonic Media

2021 ◽  
Vol 3 ◽  
Author(s):  
Manuel Rodrigues Gonçalves
Keyword(s):  
Photonic Crystal ◽  
Strong Coupling ◽  
Noble Metals ◽  
Effective Medium Theory ◽  
Propagation Constant ◽  
Edge States ◽  
Coupled Resonators ◽  
Hyperbolic Metamaterials ◽  
Quarter Wavelength ◽  
Fabry Perot

Thin films of noble metals with thickness smaller than the wavelength of light constitute one of the most investigated structures in plasmonics. The fact that surface plasmon modes can be excited in these films by different ways and the simplicity of fabrication offer ideal conditions for applications in nanophotonics. The generation of optical modes in coupled Fabry-Pérot planar cavities and their migration to hyperbolic metamaterials is investigated. Coupled Fabry-Pérot cavities behave as simple coupled resonators. When the intra-cavity media have different refractive indices in two or more coupled cavities resonance anti-crossings arise. The application of this kind of strong coupling in sensing is foreseen. Beyond the cavity modes excited by propagating waves, also long range plasmonic guided modes can be excited using emitters or evanescent waves. A periodic structure made by multiple plasmonic films and dielectrica supports bulk plasmons, of large propagation constant and increasing field amplitude. The optical response of these structures approaches that of the hyperbolic metamaterial predicted by the effective medium theory. Light can propagate with full transmission in a structure made of a photonic crystal based on quarter wavelength layers and a second photonic crystal with an overlapping forbidden band, but presenting a non-trivial topological phase achieved by band inversion. This is due to excitation of optical Tamm states at the boundary between both crystals. The extension to multiple optical Tamm states using dielectric and plasmonic materials and the symmetries of the edge states is investigated.

Broadband room temperature strong coupling between quantum dots and metamaterials

Nanoscale ◽  
2017 ◽  
Vol 9 (32) ◽  
pp. 11418-11423 ◽  
Author(s):  
Chaitanya Indukuri ◽  
Ravindra Kumar Yadav ◽  
J. K. Basu
Keyword(s):  
Quantum Dots ◽  
Strong Coupling ◽  
Room Temperature ◽  
Local Density ◽  
Hyperbolic Metamaterials

Super-radiance and enhanced local density of optical states induced strong coupling between quantum dots and hyperbolic metamaterials.

scholarly journals Strong Coupling in Semiconductor Hyperbolic Metamaterials

Nano Letters ◽  
2021 ◽  
Author(s):  
Patrick Sohr ◽  
Dongxia Wei ◽  
Zhengtianye Wang ◽  
Stephanie Law
Keyword(s):  
Strong Coupling ◽  
Hyperbolic Metamaterials

Strong Coupling and Exceptional Points in Optically Pumped Active Hyperbolic Metamaterials

ACS Photonics ◽  
2018 ◽  
Vol 5 (6) ◽  
pp. 2486-2495 ◽  
Author(s):  
Fabio Vaianella ◽  
Joachim M. Hamm ◽  
Ortwin Hess ◽  
Bjorn Maes
Keyword(s):  
Strong Coupling ◽  
Optically Pumped ◽  
Hyperbolic Metamaterials ◽  
Exceptional Points

Exchange-Correlation Energy Densities and Response Potentials: Connection Between Two Definitions and Analytical Model for the Strong-Coupling Limit of a Stretched Bond

2019 ◽  
Author(s):  
S. Giarrusso ◽  
Paola Gori-Giorgi
Keyword(s):  
Density Functional Theory ◽  
Strong Coupling ◽  
Density Functional ◽  
Correlation Energy ◽  
Order Term ◽  
Strong Coupling Limit ◽  
Local Form ◽  
Coupling Constant ◽  
Functional Theory ◽  
Exchange Correlation

We analyze in depth two widely used definitions (from the theory of conditional probablity amplitudes and from the adiabatic connection formalism) of the exchange-correlation energy density and of the response potential of Kohn-Sham density functional theory. We introduce a local form of the coupling-constant-dependent Hohenberg-Kohn functional, showing that the difference between the two definitions is due to a corresponding local first-order term in the coupling constant, which disappears globally (when integrated over all space), but not locally. We also design an analytic representation for the response potential in the strong-coupling limit of density functional theory for a model single stretched bond.<br>

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