Hyperbolic metamaterials

Author: vhgp

August undefined, 2024

Web12 mei 2014 · We show that a superlattice consisting of titanium nitride as a plasmonic component behaves as an optical hyperbolic metamaterial and exhibits extremely high photonic density of states. Abstract Titanium nitride (TiN) is a plasmonic material having optical properties resembling gold. Web28 nov. 2013 · Here, we review hyperbolic metamaterials — one of the most unusual classes of electromagnetic metamaterials. They display hyperbolic (or indefinite) dispersion, which originates from one of...

Hyperbolic Metamaterials: From Dispersion Manipulation to …

Web1 dec. 2024 · Ideal hyperbolic metamaterials. We define the indefinite metrics in the k -space as usual, via the scalar product ( x, y) = gklxk*yl using the Hermitian metric tensor [ 99 – 101] (assuming summation over the repeated indexes, … Web20 nov. 2024 · As an important class of artificial anisotropic metamaterial with hyperbolic iso-frequency contours (IFCs), hyperbolic metamaterials (HMMs) have recently … dvjesto ili dvijesto

Hyperbolic Metamaterials and Metasurfaces: Fundamentals and ...

Web25 sep. 2024 · Hyperbolic metamaterials (HMMs) are a special class of metamaterials that exhibit a hyperbolic dispersion relation. Hyperbolic dispersion is rarely observed in natural materials as it typically requires nanostructured composites with constituent materials having both positive and negative electric permittivity or magnetic permeability … Web21 apr. 2015 · We propose and theoretically explore terahertz amplification, based on stimulated generation of plasmons in graphene asymmetric hyperbolic metamaterials (AHMM), strongly coupled to terahertz radiation. In contrast to the terahertz amplification in resonant nanocavities, AHMM provides a wide-band THz amplification without any … Web1 dec. 2024 · Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion relation. They are able to support high- k modes and exhibit a high density of states which produce... dvjg dsv

Hyperbolic metamaterials

Web12 apr. 2024 · In article number 2000277, Tommi Isoniemi, Francesco de Angelis and co‐workers characterize hyperbolic metamaterial nanostructures with electron spectroscopy, unveiling plasmonic resonances with ... Web9 dec. 2024 · As an important class of anisotropic metamaterials with a hyperbolic iso-frequency contour, hyperbolic metamaterials (HMMs) have attracted significant …

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WebHyperbolic metamaterials were originally introduced to overcome the diffraction limit of optical imaging. Soon thereafter it was realized that hyperbolic metamaterials demonstrate a number of novel phenomena resulting from the broadband singular behavior of their density of photonic states. WebHyperbolic. Hyperbolic metamaterials behave as a metal when light passes through it in one direction and like a dielectric when light passes in the perpendicular direction, called extreme anisotropy. The material's dispersion relation forms a hyperboloid. The associated wavelength can in principle be infinitely small.

Web23 sep. 2024 · Hyperbolic metamaterials (HMMs) are novel artificial materials that excite the surface plasmon resonance (SPR) because of their unique hyperbolic dispersion properties. Herein, to the best of our knowledge, we propose the first HMM-based fiber SPR (HMM-SPR) sensor for vector magnetic detection. By selecting the composite materials … Web12 apr. 2024 · Abstract It is well known that extraordinary photons in hyperbolic metamaterials may be described as living in an effective Minkowski spacetime, which is defined by the peculiar form of the...

Web21 apr. 2015 · We propose and theoretically explore terahertz amplification, based on stimulated generation of plasmons in graphene asymmetric hyperbolic metamaterials …

Web23 okt. 2024 · Hyperbolic metamaterials or metamaterials with an extreme (indefinite) anisotropy leading to hyperbolic dispersion profile are one of the current directions of interest in optics and photonics due to their unique optical and material properties. Fabrication of hyperbolic metamaterials incorporates a lot of challenges directly …

WebHyperbolic metamaterials were originally introduced to overcome the diffraction limit of optical imaging. Soon thereafter it was realized that hyperbolic metamaterials … rednet dom katalogWeb7 jun. 2024 · Moreover, hyperbolic metamaterials (HMMs) have been considered from theoretical perspectives as electromagnetic absorbers for scattered fields. The described phenomenon was experimentally shown by placing scatters on top of HMM. dvj gdsvWeb13 apr. 2024 · Among many other extreme optical features, unbounded isofrequency surfaces in hyperbolic dispersion metamaterials 36 and point-like vanishing surfaces in ENZ media 37 constitutes two examples of ... dvjgfWebA hyperbolic metamaterial made from titanium nitride (metal) and aluminum scandium nitride (dielectric) have compatible crystal structures and can form a superlattice, a … dvj gdvWeb18 feb. 2024 · Hyperbolic metamaterials (HMMs), an important class of artificial anisotropic materials with hyperbolic IFCs, have been … dvjg dvWeb10 jan. 2024 · Hyperbolic metamaterials with a unique hyperbolic dispersion relation allow propagating waves with infinitely large wavevectors and a high density of states. … dvjgmWeb14 nov. 2024 · Hyperbolic metamaterials are composite artificial nanostructured materials in which the transverse and longitudinal components of the dielectric permittivity and/or magnetic permeability tensor have opposite signs [ 1, 2 ]. dvjg sdv