Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por tema "Metamaterials"
Mostrando ítems 1-12 de 12
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Accurate circuit modeling of fishnet structures for negative-index-medium applications
Torres Landívar, Víctor
; Mesa, Francisco; Navarro Cía, Miguel 
; Rodríguez Berral, Raúl; Beruete Díaz, Miguel ; Medina, Francisco (IEEE, 2016)
Artículo / Artikulua 
Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit extraordinary transmission of electromagnetic waves. Stacking two or more of such plates gives place to the ... -
Electroinductive waves in chain of complementary metamaterial elements
Beruete Díaz, Miguel ; Falcone Lanas, Francisco Javier ; Freire, M. J.; Marqués, R.; Baena, J.D. (AIP Publishing, 2006)
Artículo / Artikulua
Electronductive waves supported by chains of resonators drilled on a metallic plate are presented. Propagation of energy comes as a consequence of the electric coupling between these resonators. Therefore, these waves ... -
Epsilon-near-zero metalenses operating in the visible
Pacheco-Peña, Víctor ; Navarro Cía, Miguel ; Beruete Díaz, Miguel (Elsevier, 2016)
Artículo / Artikulua
Several converging lenses working in the permittivity near to zero (ENZ) regime at optical frequencies are designed using an array of metal-dielectric-metal plasmonic waveguides. These plasmonic waveguides show a dispersive ... -
Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle
Torres Landívar, Víctor; Orazbayev, Bakhtiyar ; Pacheco-Peña, Víctor ; Teniente Vallinas, Jorge ; Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Sorolla Ayza, Mario (IEEE, 2015)
Artículo / Artikulua
The performance of an epsilon-near zero (ENZ) plano-concave lens is experimentally demonstrated and verified at the D-band of the millimeter-waves. The lens is comprised of an array of narrow metallic waveguides near cut-off ... -
Experimental demonstration of metamaterials application for mitigating scan blindness in phased array antennas
Rodríguez Ulibarri, Pablo ; Crépin, Thomas; Martel, Cédric; Boust, Fabrice; Falcone Lanas, Francisco Javier ; Loecker, Claudius; Herbertz, Kai; Bertuch, Thomas; Dousset, Thierry; Martinaud, Jean-Paul; Maci, Stefano; Marcotegui, José Antonio ; Beruete Díaz, Miguel (EDP Sciences, 2016)
Artículo / Artikulua
This paper presents two metamaterial-inspired solutions to mitigate the scan blindness effects in a phased array antenna. In the first solution, portions of a bed of nails are introduced in the radome to prevent the excitation ... -
Experimental realization of an epsilon-near-zero graded-index metalens at terahertz frequencies
Pacheco-Peña, Víctor ; Engheta, Nader; Kuznetsov, Sergei A.; Gentselev, Alexandr; Beruete Díaz, Miguel (American Physical Society, 2017)
Artículo / Artikulua
The terahertz band has been historically hindered by the lack of efficient generators and detectors, but a series of recent breakthroughs have helped to effectively close the “terahertz gap.” A rapid development of terahertz ... -
Full three-dimensional isotropic transformation media
García Meca, Carlos; Ortuño Molinero, Rubén; Martí, J.; Martínez, Alejandro (IOP Publishing, 2014)
Artículo / Artikulua
We present a method that enables the implementation of full three-dimensional (3D) transformation media with minimized anisotropy. It is based on a special kind of shape-preserving mapping and a subsequent optimization ... -
Hedgehog subwavelength hole arrays: control over the THz enhanced transmission
Navarro Cía, Miguel ; Rodríguez Ulibarri, Pablo ; Beruete Díaz, Miguel (Institute of Physics Publishing, 2013)
Artículo / Artikulua
By backing or sandwiching a holey metal layer with or between isotropic dielectric slabs, additional peaks of transmission within the long-wavelength regime arise as a result of the induced transverse magnetic (TM) or ... -
Lensing system and Fourier transformation using epsilon-near-zero metamaterials
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Engheta, Nader (American Physical Society, 2012)
Artículo / Artikulua
Metamaterials and metastructures with effective relative permittivity near zero exhibit unusual wave properties such as uniform phase distributions across such domains. Here we discuss the possibility of using ε-near-zero ... -
Nonbianisotropic complementary split ring resonators as angular selective metasurfaces
Rodríguez Ulibarri, Pablo ; Beruete Díaz, Miguel (Optical Society of America, 2017)
Artículo / Artikulua
In this work, a metasurface with unconventional angular performance and composed by a nonbianisotropic complementary split ring resonator (NB-CSRR) is analyzed numerically and experimentally. A numerical study comparing ... -
A slow light fishnet-like absorber in the millimeter-wave range
Navarro Cía, Miguel ; Torres Landívar, Víctor ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario (EMW Publishing, 2011)
Artículo / Artikulua
A novel route to achieve a narrowband free-space electromagnetic absorber in any range of the spectrum based on stacked subwavelength hole arrays is proposed. The absorption is obtained by means of a slow light mode inside ... -
Tunable beam steering enabled by graphene metamaterials
Orazbayev, Bakhtiyar ; Beruete Díaz, Miguel ; Khromova, Irina (Optical Society of America, 2016)
Artículo / Artikulua
We demonstrate tunable mid-infrared (MIR) beam steering devices based on multilayer graphene-dielectric metamaterials. The effective refractive index of such metamaterials can be manipulated by changing the chemical potential ...
