Infrared spatial and frequency selective metamaterial with near-unity absorbance.
TL;DR: This work demonstrates, for the first time, a spatially dependent metamaterial perfect absorber operating in the infrared regime, and achieves an experimental absorption of 97% at a wavelength of 6.0 μm.
read more
Abstract: We demonstrate, for the first time, a spatially dependent metamaterial perfect absorber operating in the infrared regime We achieve an experimental absorption of 97% at a wavelength of 60 microns, and our results agree well with numerical full-wave simulations By using two different metamaterial sublattices we experimentally demonstrate a spatial and frequency varying absorption which may have many relevant applications including hyperspectral sub-sampling imaging
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Polarization and sizes variation immune optical absorbers
Li Zhang,Yongqi Fu,Weixing Yu +2 more
TL;DR: In this article, a novel optical absorber that is flexible in size for fabrication and unique properties is studied numerically by aid of finite difference in time domain (FDTD) algorithm.
1
•Posted Content
Design of Dual-band Graphene-Based Absorbers by Exciting Graphene Plasmon Polaritons: Circuit Model Analysis
Saeedeh Barzegar-Parizi
- 05 Jun 2019
TL;DR: In this paper, a dual-band absorber based on graphene metasurfaces for terahertz frequencies was designed, which is based on excitation of the grapheneplasmon polaritons (GPPs) of the patterned array of graphene elements in each resonant band.
1
Polarization-independent multi-peak plasmonic absorber
I. L. Gomes de Souza,Vitaly F. Rodriguez-Esquerre +1 more
- 25 Aug 2017
TL;DR: In this paper, a multipeak polarization independent absorber based on ultrathin metamaterials composed of metal layers (Al) and dielectric (polymer, ZnSe) has been proposed and numerically analyzed.
1
Multifunctional Metasurface for Absorption, Polarization Conversion and Transmission
Thayana M. L. de Sousa,M. W. B. Da Silva,Francisco Nobre,Antônio L. P. S. Campos +3 more
- 05 Nov 2023
TL;DR: Multifunctional metasurface for absorption, polarization conversion and transmission exhibits high absorption and conversion rates over narrow bands.
1
References
Experimental Verification of a Negative Index of Refraction
TL;DR: These experiments directly confirm the predictions of Maxwell's equations that n is given by the negative square root ofɛ·μ for the frequencies where both the permittivity and the permeability are negative.
Composite Medium with Simultaneously Negative Permeability and Permittivity
TL;DR: A composite medium, based on a periodic array of interspaced conducting nonmagnetic split ring resonators and continuous wires, that exhibits a frequency region in the microwave regime with simultaneously negative values of effective permeability and permittivity varepsilon(eff)(omega).
Metamaterial Electromagnetic Cloak at Microwave Frequencies
David Schurig,Jack J. Mock,B.J. Justice,Steven A. Cummer,John B. Pendry,Anthony F. Starr,David R. Smith +6 more
TL;DR: This work describes here the first practical realization of a cloak of invisibility, constructed with the use of artificially structured metamaterials, designed for operation over a band of microwave frequencies.
Near-Optimal Signal Recovery From Random Projections: Universal Encoding Strategies?
Emmanuel J. Candès,Terence Tao +1 more
TL;DR: If the objects of interest are sparse in a fixed basis or compressible, then it is possible to reconstruct f to within very high accuracy from a small number of random measurements by solving a simple linear program.