Graphene-based hyperbolic metamaterial
WebSep 10, 2024 · The GH effect at the interface of a graphene-based hyperbolic metamaterial slab is investigated. A Gaussian beam with TM polarization in a total … WebJul 13, 2013 · Graphene-based hyperbolic metamaterial Abstract: We introduce a graphene-based composite multilayer structure that exhibits hyperbolic-like wavevector dispersion at terahertz and mid-infrared frequencies. The multilayer structure comprises graphene sheets separated by dielectric layers.
Graphene-based hyperbolic metamaterial
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WebWe introduce graphene-based hyperbolic metamaterial for terahertz frequencies. The LDOS as well as the scattered power by a microsphere at its surface are enhanced by … WebDec 22, 2014 · On the other hand, due to two dimensional nature and metallic characteristics of graphene in the frequency range where hexagonal Boron Nitride behaves as a type-I hyperbolic Metamaterial, we have ...
WebJun 27, 2014 · Graphene-based hyperbolic metamaterials Our graphene-based HMM is representatively shown in Fig. 1 (a). It is a graphene multilayer structure in which separations between graphene sheets... WebNov 1, 2024 · So, we have selected graphene-based hyperbolic metamaterial as a defect layer, in which graphene is placed between the adjacent dielectric layers. PCs are able to create a range of disallowed bands of wavelengths known as photonic band gaps (PBGs) [37, 38]. What makes PCs to be the exceptional materials is their tunability by allowing or ...
WebSep 1, 2024 · The combination of graphene and metallic metamaterials is the best means to attain active control of the electromagnetic wave. A C-shaped unit cell with a graphene … WebFigure 1. Graphene-based multilayer HM topology, comprises graphene sheets as inductive surfaces stacked with dielectric spacers leading to hyperbolic dispersion at terahertz and …
WebFeb 5, 2024 · A tunable graphene-based hyperbolic metamaterial is designed and numerically investigated in the mid-infrared frequencies. Theoretical analysis proves that by adjusting the chemical potential of ...
WebThis work introduces a parallel computing framework to characterize the propagation of electron waves in graphene-based nanostructures. The electron wave dynamics is modeled using both “microscopic” and effective medium formalisms and the numerical solution of the two-dimensional massless Dirac equation is determined using a Finite-Difference Time … five of pentacles uprightWebFeb 1, 2024 · The graphene plasmonic nano-ribbons are used and silicon slabs are improvised between the graphene to reduce its drawback by providing a hyperbolic metamaterial lens. Abstract Demand for an antenna with high gain and directivity for medical sensing is necessary so the Vivaldi antenna in the THz spectrum with … can i use carplay without siriWebGraphene based hyperbolic metamaterial for tunable mid-infrared biosensing Sarah Cynthia, a Rajib Ahmed, b Sharnali Islam, a Khaleda Ali a and Mainul Hossain *a Author affiliations Abstract Plasmonic biosensors, operating in the mid-infrared (mid-IR) region, are well-suited for highly specific and label-free optical biosensing. can i use car oil in my motorbikeWebJan 28, 2024 · graphene and hyperbolic metamaterial-based structure. IEEE Photonics. Journal, 11(4), pp.1-10. Citations (0) References (41) ResearchGate has not been able to resolve any citations for this ... five of sevenWebJun 15, 2024 · HMMs are considered by employing multiple stacked photoexcited graphene sheets divided by dielectric spacers. Herein, we study and characterize the hyperbolic … five of sixWebNov 27, 2024 · Some composite structures based on graphene and natural hyperbolic materials are proposed to regulate the spontaneous emission [ 52, 53 ]. In this paper, we study the spontaneous emission of a quantum emitter near a sandwich structure stacked by graphene, HMMs made from SiC nanowires, and graphene. can i use cartwheel for online purchasesWebJun 9, 2024 · Graphene-based hyperbolic metamaterials are well known for their optical anisotropy, high absorption of electromagnetic radiation, and low energy loss. We proposed a novel multilayer graphene-silica hyperbolic metamaterial designed as a grating structure providing narrowband near-perfect absorption of radiation in a mid-infrared band. The … can i use car wax on snowboard