Graphene-based hyperbolic metamaterial

Author: crcn

August undefined, 2024

WebGraphene 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.

Graphene-based hyperbolic metamaterial as a switchable …

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. WebJun 7, 2024 · Photoexcited graphene can behave as the gain medium aiming to come up with the coherent radiation at low THz spectral region. However, its response is very … first word latency meaning

Graphene based hyperbolic metamaterial for tunable mid …

WebMar 2, 2024 · A tunable graphene-based hyperbolic metamaterial is designed and numerically investigated in the mid-infrared frequencies. Theoretical analysis proves … WebThe 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 ... 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 … first word medtech

Nanomaterials Free Full-Text Extraordinary Optical Transmission …

Tunable terahertz structure based on graphene hyperbolic …

WebFigure 1. Graphene-based multilayer HM topology, comprises graphene sheets as inductive surfaces stacked with dielectric spacers leading to hyperbolic dispersion at terahertz and … WebApr 1, 2024 · A tunable hyperbolic graphene-polar dielectric metamaterial is proposed. The proposed metamaterial is analyzed using transfer matrix method. The proposed … first word in the oxford english dictionaryWebThis 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 … first word latency chart

"WebJan 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 ... " - Graphene-based hyperbolic metamaterial

Graphene-based hyperbolic metamaterial

WebOct 28, 2013 · We demonstrate that 100% light absorption can be achieved in a graphene-based hyperbolic metamaterial, consisting of periodically arranged graphene layers which are tilted with respect to the interface. The geometrical parameters of the multilayered structure and the chemical potential of graphene are chosen in such a way that the in … WebApr 21, 2015 · We propose and theoretically explore terahertz amplification, based on stimulated generation of plasmons in graphene asymmetric hyperbolic metamaterials …

Did you know?

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 …

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 ... 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 …

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... 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 ...

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 …

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. camping heide camp brüggenWebMay 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 … first word of dante\\u0027s infernoWebOct 7, 2024 · We have theoretically shown that a complex resonator containing an asymmetric hyperbolic material based on a periodic nanostructure, including layers of inverted graphene and semiconductor, allows single-mode generation of THz radiation. first word of beowulfWebApr 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 first wordle wordWebRef. 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. camping heidehof ulmWebDec 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 ... camping hegne allensbachWebFeb 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.... first word of dante\u0027s inferno crossword clue