Graphene-based hyperbolic metamaterial

Author: mjwv

August undefined, 2024

WebOct 15, 2024 · Huihui Li, Weiming Hao, Xiang Yin, Shuqi Chen, Lin Chen, “Broadband generation of Airy beams with hyperbolic metamaterials,” Adv. Opt. Mater. 7, ... Zhancheng Li, and Jianguo Tian, “Dynamically tunable broadband mid-infrared cross polarization converter based on graphene metamaterial,” Appl. Phys. Lett. 103, 223102 (2013). 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 …

Graphene-based tunable hyperbolic microcavity - PMC

WebNov 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. WebMar 25, 2013 · A graphene-based tunable hyperbolic metamaterials was designed for enhanced absorption in far-infrared frequencies 13. The tunable propagation properties … dune coming back to hbo max

Tunable broadband superradiance near a graphene/hyperbolic metamaterial ...

WebNov 29, 2024 · The structure under consideration (Fig. 1) consists of two building blocks: grating made of Si (\(\varepsilon = \varepsilon_{g} = 12.25\)) and a slab of graphene-dielectric metamaterial.The function of the first building block is creation of higher-order transmission channel(s). In such a case, the coupling of the incident waves differs for the … WebFeb 10, 2014 · A kind of tunable hyperbolic metamaterial (HMM) based on the graphene-dielectric layered structure at near-infrared frequencies is presented, and the engineered surface Bloch waves between graphene-based HMM and isotropic medium are investigated. Our calculations demonstrate that the frequency and f … WebApr 1, 2024 · A tunable hyperbolic graphene-polar dielectric metamaterial is proposed. The proposed metamaterial is analyzed using transfer matrix method. The proposed … dune color jeep wrangler

Tunable slow light with graphene based hyperbolic …

Tunable far-infrared hyperbolic metamaterial based on graphene …

WebRef. studied an NFTPV system consisting of a tungsten-nanowire-based hyperbolic metamaterial emitter and an In 0.2 Ga 0.8 Sb cell. By optimizing the filling ratio of Al 2 O 3, the maximum electric power peaked at 58.0 W/cm 2 thanks to the high temperature difference between the emitter and the receiver. Ref. WebMar 18, 2024 · Based on the optimized processing parameters, we fabricated a large-area graphene-based metamaterial absorber (25 × 50 mm 2, Fig. 3b) and tested its photothermal performance. The absolute ... dune concept art wallpaperWebThe proposed graphene-based harmonic sensor may potentially benefit a wide range of sensing applications, including, but not limited to, power-efficient, real-time monitoring of chemical/gas ... dune cookbook

"WebFeb 4, 2016 · Graphene is a two-dimensional (2D) semi-metal with a thickness of only one atom 22, 23. It has been shown that doped graphene is a good infrared plasmonic material in terms of material loss 24.... " - Graphene-based hyperbolic metamaterial

Graphene-based hyperbolic metamaterial

Tunable broadband superradiance near a graphene/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 … WebNov 28, 2013 · Graphene-based hyperbolic metamaterials exhibit a strong Purcell effect that could be used for boosting terahertz emission in semiconductor devices. Nature Photonics offers a unique mix of news and reviews alongside top-quality …

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WebApr 1, 2024 · In this work, we propose a tunable hyperbolic graphene-polar dielectric metamaterial in the far-infrared range. Here, we employ LiF as a strongly dispersive photonic material which can support surface plasmon polariton within its polaritonic gap. The proposed metamaterial has been analyzed using effective medium approximation …

WebJun 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 … 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 ...

WebJul 13, 2013 · Graphene-based hyperbolic metamaterial. Abstract: We introduce a graphene-based composite multilayer structure that exhibits hyperbolic-like … 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 …

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.

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 … dune coming back to hboWebMar 2, 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 graphene from 0.2 eV to 0.8 eV, the reflectance can be blue-shifted up to 2.3 µm. Furthermore, by modifying the number of graphene … dune cough in germanWebMay 24, 2024 · Hexagonal boron nitride (hBN) exhibits natural hyperbolic dispersion in the infrared (IR) wavelength spectrum. In particular, the hybridization of its hyperbolic phonon polaritons (HPPs) and surface plasmon resonances (SPRs) induced by metallic nanostructures is expected to serve as a new platform for novel light manipulation. In this … dune colored jeep wranglerWebDec 22, 2014 · Here we theoretically propose and numerically analyze a graphene based tunable slow light device from the concept of controlling the group velocity of light in … dune country oregonWebA kind of tunable hyperbolic metamaterial (HMM) based on the graphene-dielectric layered structure at near-infrared frequencies is presented, and the engineered surface Bloch waves between graphene-based HMM and isotropic medium are investigated. Our calculations demonstrate that the frequency and frequency range of surface Bloch waves … dune cowboy bootsWebApr 10, 2024 · Coupling of surface plasmon polaritons (SPPs) supported by graphene and hyperbolic phonon polaritons (HPPs) supported by hyperbolic materials (HMs) could effectively promote photo dune country realtyWebFigure 1. Graphene-based multilayer HM topology, comprises graphene sheets as inductive surfaces stacked with dielectric spacers leading to hyperbolic dispersion at terahertz and … dune creative house