All-dielectric nanophotonics is an exciting and rapidly developing area of nano-optics that utilizes the resonant behavior high-index low-loss dielectric nanoparticles to enhance light-matter interaction at nanoscale.When experimental implementation a specific all-dielectric nanostructure desired, two crucial factors have be considered: choice material fabrication method.The degree which various effects can enhanced relies on response chosen as well accuracy.Here, we provide overview...

Using the Kubo formalism we have calculated local dynamic conductivity of a bulk, i.e., three-dimensional (3D), Dirac semimetal (BDS). We obtain that at frequencies lower than Fermi energy metallic response in BDS film manifests existence surface-plasmon polaritons, but higher dielectric is dominated and it occurs behaves as waveguide. At this regime predict inside novel electromagnetic modes, 3D analog transverse electric waves graphene. also find wide-angle passband mid-infrared (IR)...

The propagation of light in Weyl semimetal films is analyzed. magnetic family these materials known by anomalous Hall effect, which, being enhanced the large Berry curvature, allows one to create strong gyrotropic and nonreciprocity effects without external field. existence nonreciprocal waveguide electromagnetic modes ferromagnetic Voigt configuration predicted. Thanks dielectric response caused gapless spectrum semimetals combine best properties dielectrics or semiconductors with effect...

Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) are extremely attractive materials for optoelectronic applications in the visible and near-infrared range. Coupling these to optical nanocavities enables advanced quantum optics nanophotonic devices. Here, we address issue of resonance coupling hybrid exciton-polariton structures based on single Si nanoparticles (NPs) coupled monolayer (1L)-WS2. We predict a strong regime with Rabi splitting energy exceeding 110 meV NP...

A comprehensive analysis of hybrid TM-TE polarized surface electromagnetic waves supported by different few-layer anisotropic metasurfaces is presented. generalized $4\ifmmode\times\else\texttimes\fi{}4$ T-matrix formalism for arbitrary two-dimensional (2D) layers developed, from which the general relations dispersions and scattering coefficients are deduced. Using this effective conductivity approach, iso-frequency contours (IFCs) topology in various uniaxial studied. The existence...

Casimir torque, a rotational motion driven by zero-point energy minimization, is problem that attracts notable research interest. Recently, it has been realized using liquid crystal phases and natural anisotropic substrates. However, for materials, substantial torque occurs only at van der Waals distances of ~10 nm. Here, we use self-assembly with triangular gold nanostructures self-alignment truly (100 to 200 nm separation). The interplay repulsive electrostatic attractive potentials forms...

The optical activity of achiral nonmagnetic uniaxial metasurfaces caused by the extrinsic chirality arising from mutual orientation their anisotropy axis and light plane incidence is studied. hyperbolic regime manifests in amplification polarization rotation transmitted giant enhancement effect reflected light. transition to this frequency dependent has a topological nature. key role belongs $\ensuremath{\sigma}$-near-pole $\ensuremath{\sigma}$-near-zero regimes metasurfaces. based on...

We study the self-hybridization between Mie modes supported by water droplets with stretching and bending vibrations in molecules. Droplets radii <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mo>&gt;</a:mo><a:mn>2.7</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi mathvariant="normal">μ</a:mi><a:mrow><a:mi mathvariant="normal">m</a:mi></a:mrow></a:math> are found to be polaritonic on onset of ultrastrong light-matter coupling regime. Similarly, effect is...

Perfect absorption and strong coupling are two highly sought-after regimes of light–matter interactions. Both have been studied as separate phenomena in excitonic 2D materials, particularly MoS2. However, the structures used to reach these often require intricate nanofabrication. Here, we demonstrate occurrence perfect thin MoS2 multilayers supported by a glass substrate. We measure reflection spectra mechanically exfoliated flakes at various angles beyond light-line via Fourier plane...

The behavior of the TE and TM electromagnetic waves in graphene at interface between two semi-infinite dielectric media is studied. dramatic influence on propagation even very small changes optical contrast predicted. Frequencies are found to lie only window determined by contrast. We consider this effect connection with design graphene-based gas sensor. Near frequency, where imaginary part conductivity becomes zero, ultrahigh refractive index sensitivity low detection limit revealed....

Confined modes at the edge arbitrarily inclined with respect to optical axes of nonmagnetic anisotropic 2D materials are considered. By developing exact Wiener-Hopf and approximated Fetter methods we studied dispersions, field charge density distributions. The layer is described by Lorentz-type conductivities in one or both directions, which realistic for natural resonant hyperbolic metasurfaces. We demonstrate that, due anisotropy, mode exists only wave vectors exceeding nonzero threshold...

We study the self-hybridization between Mie modes supported by water droplets with stretching and bending vibrations in molecules. Droplets radii $>2.7~\mu m$ are found to be polaritonic on onset of ultrastrong light-matter coupling regime. Similarly, effect is observed larger deuterated at lower frequencies. Our results indicate that states ubiquitous nature occur mists, fogs, clouds. This finding may have implications not only for physics but also aerosol atmospheric sciences.

Plasmon polaritons in monolayer and double-layer doped graphene embedded optical microcavity are studied here. The dispersion law for lower upper cavity plasmon is obtained. Peculiarities of Rabi splitting the system analyzed, particularly role Dirac-like spinor (envelope) wave functions corresponding angle factors. Typical frequencies estimated. condition existence pair (corresponding to antiphase mode) considered can be used high-speed information transfer THz region.

Casimir torque -- a rotational motion caused by the minimization of zero-point energy is problem that attracts significant theoretical and experimental interest. Recently, it has been realized using liquid crystal phases natural anisotropic substrates. However, for materials, reaches substantial values only at van der Waals distances ~10 nm. Here, we employ self-assembly templated gold nanostructures triangular symmetry purpose self-alignment truly (100 200 nm separation). The joint action...

Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) are attractive materials for optoelectronics. In this paper, a strong coupling regime in Si nanoparticle covered by single layer WS2 system at the magnetic optical Mie resonance is observed. This achieved owing to symmetry of dipole mode, polarized along TMDC surface, and low dissipative losses nanoparticle. A Rabi splitting energy exceeding 110 meV obtained.

The optical activity of nonchiral nonmagnetic uniaxial metasurfaces caused by the extrinsic chirality arising when plane incidence a light is at an angle to metasurface main axis studied. hyperbolic regime manifests in amplification polarization rotation transmitted and giant enhancement effect reflected light. In this paper special attention paid graphene-based realization such metasurface. efficiency considered effects depends on role substrate. Varying parameters choosing implementations...

Received 15 December 2017DOI:https://doi.org/10.1103/PhysRevB.96.239905©2017 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasHyperbolic metamaterialsPolarization of lightSurface plasmon polaritonPhysical SystemsGraphenePhosphoreneTechniquesEffective medium approachCondensed Matter, Materials & Applied Physics

All-dielectric nanophotonics is an exciting and rapidly developing area of nanooptics which utilizes the resonant behavior high-index low-loss dielectric nanoparticles for enhancing light-matter interaction on nanoscale. When experimental implementation a specific all-dielectric nanostructure issue, two crucial factors have to be in focus: choice material fabrication method. The degree various effects can enhanced relies response chosen as well accuracy. Here, we make overview available...

Here, we present our recent studies of resonance coupling in single Si nanoparticle-monolayer TMDC (WS2) core-shell nanostructures. We theoretically predict strong regime such systems with a constant exceeding 58 meV.