Browsing Artículos de revista DIEE - IEES Aldizkari artikuluak by Author "811059"
Now showing items 1-20 of 22
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77-GHz high-gain bull’s-eye antenna with sinusoidal profile
Beaskoetxea Gartzia, Unai
; Pacheco-Peña, Víctor ; Orazbayev, Bakhtiyar ; Akalin, Tahsin; Maci, Stefano; Navarro Cía, Miguel (IEEE, 2015)
Artículo / Artikulua 
A high-gain Bull’s-Eye leaky-wave horn antenna working at 77 GHz with sinusoidal profile has been designed, fabricated, and experimentally measured. The influence of the number of periods on the gain and beamwidth is ... -
All-dielectric periodic terajet waveguide using an array of coupled cuboids
Minin, Igor V.; Minin, Oleg V.; Pacheco-Peña, Víctor; Beruete Díaz, Miguel (AIP Publishing, 2015)
Artículo / Artikulua
In this paper, the recently proposed technique to produce photonic jets (terajets at terahertz (THz) frequencies) using 3D dielectric cuboids is applied in the design of a mesoscale cuboid-chain wave- guide. The chains are ... -
Description of bow-tie nanoantennas excited by localized emitters using conformal transformation
Pacheco-Peña, Víctor; Beruete Díaz, Miguel ; Fernández Domínguez, Antonio I.; Luo, Yu; Navarro Cía, Miguel (American Chemical Society, 2016)
Artículo / Artikulua
The unprecedented advance experienced by nano- fabrication techniques and plasmonics research over the past few years has made possible the realization of nanophotonic systems entering into the so-called strong coupling ... -
Doubling the propagation distance of surface plasmon polaritons
Pacheco-Peña, Víctor; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (SPIE, 2016)
Artículo / Artikulua
A novel passive repeater, based on a chain of 3D dielectric particles, has been proposed and numerically simulated. -
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 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 ... -
Exploiting the dispersion of the double-negative-index fishnet metamaterial to create a broadband low-profile metallic lens
Orazbayev, Bakhtiyar; Pacheco-Peña, Víctor ; Beruete Díaz, Miguel ; Navarro Cía, Miguel (Optical Society of America, 2015)
Artículo / Artikulua
Metamaterial lenses with close values of permittivity and permeability usually display low reflection losses at the expense of narrow single frequency operation. Here, a broadband low-profile lens is designed by exploiting ... -
Frozen mode from hybridized extraordinary transmission and Fabry-Perot resonances
Beruete Díaz, Miguel; Rodríguez Ulibarri, Pablo ; Pacheco-Peña, Víctor ; Navarro Cía, Miguel ; Serebryannikov, Andriy E. (American Physical Society, 2013)
Artículo / Artikulua
Frozen modes arising in stacked subwavelength hole arrays are studied in detail. Their origin is proved to be connected with the interaction between the extraordinary transmission resonance and the Fabry–Perot cavity mode. ... -
Increasing surface plasmons propagation via photonic nanojets with periodically spaced 3D dielectric cuboids
Pacheco-Peña, Víctor; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (MDPI, 2016)
Artículo / Artikulua
A structure based on periodically arranged 3D dielectric cuboids connected by photonic nanojets (PNJs) is proposed with the aim of increasing the propagation distance of surface plasmon polaritons (SPPs) at the telecom ... -
Localized photonic jets from flat, three-dimensional dielectric cuboids in reflection mode
Minin, Igor V.; Minin, Oleg V.; Pacheco-Peña, Víctor; Beruete Díaz, Miguel (Optical Society of America, 2015)
Artículo / Artikulua
A photonic jet (a terajet at terahertz frequencies) commonly denotes a specific, spatially localized region in the near field on the front side of a dielectric particle with a diameter comparable with the wavelength ... -
Mechanical 144GHz beam steering with all-metallic epsilon-near-zero lens antenna
Pacheco-Peña, Víctor; Torres Landívar, Víctor ; Orazbayev, Bakhtiyar ; Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Sorolla Ayza, Mario ; Engheta, Nader (AIP Publishing, 2014)
Artículo / Artikulua
An all-metallic steerable beam antenna composed of an ε-near-zero (ENZ) metamaterial lens is experimentally demonstrated at 144 GHz (λ0 = 2.083 mm). The ENZ lens is realized by an array of narrow hollow rectangular waveguides ... -
Multifrequency focusing and wide angular scanning of terajets
Pacheco-Peña, Víctor; Beruete Díaz, Miguel ; Minin, Igor V.; Minin, Oleg V. (Optical Society of America, 2015)
Artículo / Artikulua
In the past, it has been demonstrated that it is possible to produce terajets with high resolution at its focus using 3D dielectric cuboids under plane-wave illumination. Here, a systematic study of the harmonic and angular ... -
On the performance of the zoned fishnet metamaterial lens with positive and negative reference phase
Pacheco-Peña, Víctor; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (IEEE, 2016)
Artículo / Artikulua
In this letter, several converging fishnet metalenses are designed using both the zoning and reference phase techniques. They are engineered with a focal length of 1.5λ0 at the design frequency of 55 GHz (λ0 = 5.45 mm) at ... -
Phase reversal technique applied to fishnet metalenses
Pacheco-Peña, Víctor; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (Hindawi, 2018)
Artículo / Artikulua
In this work, the fishnet metamaterial is applied to several converging metalenses by combining the zoning, reference phase, and phase reversal techniques. First, the zoning and reference phase techniques are implemented ... -
Soret fishnet metalens antenna
Orazbayev, Bakhtiyar; Beruete Díaz, Miguel ; Pacheco-Peña, Víctor ; Crespo López, Gonzalo ; Teniente Vallinas, Jorge ; Navarro Cía, Miguel (Springer Nature, 2015)
Artículo / Artikulua
At the expense of frequency narrowing, binary amplitude-only diffractive optical elements emulate refractive lenses without the need of large profiles. Unfortunately, they also present larger Fresnel reflection loss ... -
Terahertz epsilon-near-zero graded-index lens
Torres Landívar, Víctor; Pacheco-Peña, Víctor ; Rodríguez Ulibarri, Pablo ; Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Engheta, Nader (Optical Society of America, 2013)
Artículo / Artikulua
An epsilon-near-zero graded-index converging lens with planar faces is proposed and analyzed. Each perfectly-electric conducting (PEC) waveguide comprising the lens operates slightly above its cut-off frequency and has ... -
Terajets produced by dielectric cuboids
Pacheco-Peña, Víctor; Beruete Díaz, Miguel ; Minin, Igor V.; Minin, Oleg V. (AIP Publishing, 2014)
Artículo / Artikulua
The capability of generating terajets using three-dimensional (3D) dielectric cuboids working at terahertz (THZ) frequencies (as analogues of nanojets in the infrared band) is introduced and studied numerically. The focusing ... -
Ultra-compact planoconcave zoned metallic lens based on the fishnet metamaterial
Pacheco-Peña, Víctor; Orazbayev, Bakhtiyar ; Torres Landívar, Víctor ; Beruete Díaz, Miguel ; Navarro Cía, Miguel (AIP Publishing, 2013)
Artículo / Artikulua
A 1.5λ0 -thick planoconcave zoned lens based on the fishnet metamaterial is demonstrated experimentally at millimeter wavelengths. The zoning technique applied allows a volume reduction of 60% compared to a full fishnet ... -
Zoned fishnet lens antenna with reference phase for side lobe reduction
Pacheco-Peña, Víctor; Navarro Cía, Miguel ; Orazbayev, Bakhtiyar ; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (IEEE, 2015)
Artículo / Artikulua
Reduction of first side lobe level and nulls in artificial fishnet metalenses is accomplished here by applying the reference phase concept along with the zoning technique. Higher focusing efficiency is achieved for a ...
