Listar Artículos de revista DIEC - IEKS Aldizkari artikuluak por autor UPNA "Beruete Díaz, Miguel"
Mostrando ítems 1-20 de 20
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Bull’s-eye antenna with circular polarization at millimeter waves based on ridge gap waveguide technology
Pérez Quintana, Dayan
; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel (IEEE, 2021)
Artículo / Artikulua 
In this communication, a Bull’s-Eye (BE) antenna with circular polarization (CP) based on ridge gap waveguide (RGW) technology is numerically and experimentally demonstrated. The structure is excited from the bottom with ... -
Compact groove diamond antenna in gap waveguide technology with broadband circular polarization at millimeter waves
Pérez Quintana, Dayan ; Torres García, Alicia E. ; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel (IEEE, 2020)
Artículo / Artikulua
In this paper, three compact antennas using the Ridge Gap Waveguide (RGW) technology working in the millimeter-wave band (60 GHz), with a high-purity and broadband circular polarization (CP) are numerically and experimentally ... -
Experimental demonstration of deeply subwavelength dielectric sensing with epsilon-near-zero (ENZ) waveguides
Beruete Díaz, Miguel ; Engheta, Nader; Pacheco-Peña, Víctor (American Institute of Physics, 2022)
Artículo / Artikulua
In this Letter, an all metallic sensor based on ε-near-zero (ENZ) metamaterials is studied both numerically and experimentally when working at microwave frequencies. To emulate an ENZ medium, a sensor is made by using a ... -
Far-field and near-field physics of extraordinary THz transmitting hole-array antennas
Camacho, Miguel; Boix, Rafael R.; Kuznetsov, Sergei A.; Beruete Díaz, Miguel ; Navarro Cía, Miguel (IEEE, 2019)
Artículo / Artikulua
Despite three decades of effort, predicting accurately extraordinary transmission through subwavelength hole arrays has proven challenging. The lack of quantitative design and modeling capability to take into account ... -
Labyrinth metasurface absorber for ultra-high-sensitivity terahertz thin film sensing
Jáuregui López, Irati ; Rodríguez Ulibarri, Pablo ; Urrutia Azcona, Aitor ; Kuznetsov, Sergei A.; Beruete Díaz, Miguel (Wiley, 2018)
Artículo / Artikulua
In this work, a labyrinth metasurface sensor operating at the low‐frequency edge of the THz band is presented. Its intricate shape leads to a high electric field confinement on the surface of the structure, resulting in ... -
Labyrinth metasurface for biosensing applications: numerical study on the new paradigm of metageometries
Jáuregui López, Irati ; Rodríguez Ulibarri, Pablo ; Kuznetsov, Sergei A.; Quemada Mayoral, Carlos ; Beruete Díaz, Miguel (MDPI, 2019)
Artículo / Artikulua
The use of metasurfaces operating in the terahertz regime as biosensor devices has attracted increased interest in recent years due to their enhanced sensitivity and more accurate detection capability. Typical designs are ... -
Metageometries for polycyclic aromatic hydrocarbons detection at THz range in food systems
Jáuregui López, Irati ; Insausti Barrenetxea, Kizkitza ; Beriain Apesteguía, María José ; Beruete Díaz, Miguel (IEEE, 2021)
Artículo / Artikulua
Polycyclic aromatic hydrocarbons, when present in food systems, have been shown to have a detrimental effect on human health, producing carcinogenic elements. So, the implementation of processes for their detection and ... -
Metal-free design of a multilayered metamaterial with chirped Bragg grating for enhanced radiative cooling
Osuna Ruiz, David; Lezaun Capdevila, Carlos; Torres García, Alicia E. ; Beruete Díaz, Miguel (Optica, 2023)
Artículo / Artikulua
A wideband, all-dielectric metamaterial structure for enhancing radiative cooling is investigated. The structure is optimized to reflect most of the solar irradiance window (between 0.3 µm–3 µm), which is one of the biggest ... -
Moisture content estimation models of flour matrices in the 67-110 GHz frequency range using a nondestructive and contactless monitoring system
Quemada Mayoral, Carlos ; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel ; Gonzalo García, Ramón ; Iriarte Galarregui, Juan Carlos (IEEE, 2023)
Artículo / Artikulua
This work addresses the lack of moisture content estimation models for food products in the millimeter-wave frequency range and showcases the potential of this range for designing compact, cost-effective, and in-line food ... -
On the performance of an ENZ-based sensor using transmission line theory and effective medium approach
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel ; Rodríguez Ulibarri, Pablo ; Engheta, Nader (IOP Publishing, 2019)
Artículo / Artikulua
In this paper we perform an in-depth theoretical studyofa sensing platform based on epsilon-near- zero (ENZ) metamaterials. The structure proposed for sensing is a narrow metallic waveguide channel. An equivalent circuit ... -
Photonic nanojets with mesoscale high-index dielectric particles
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (AIP Publishing, 2019)
Artículo / Artikulua
In this work, we demonstrate the ability of high-index dielectric particles immersed in air to generate photonic nanojets with extreme resolution (∼0.06λ0). Both 2D (cylindrical) and 3D (spherical) particles are analyzed, ... -
Revealing the underlying mechanisms behind TE extraordinary THz transmission
Freer, Suzanna; Camacho, Miguel; Kuznetsov, Sergei A.; Boix, Rafael R.; Beruete Díaz, Miguel ; Navarro Cía, Miguel (Chinese Laser Press, 2020)
Artículo / Artikulua
Transmission through seemingly opaque surfaces, so-called extraordinary transmission, provides an exciting plat- form for strong light–matter interaction, spectroscopy, optical trapping, and color filtering. Much ofthe ... -
Silicon carbide as a material-based high-impedance surface for enhanced absorption within ultra-thin metallic films
Pérez Escudero, José Manuel ; Buldain, Iban; Beruete Díaz, Miguel ; Goicoechea Fernández, Javier ; Liberal Olleta, Íñigo (Optical Society of America, 2020)
Artículo / Artikulua
The absorption of infrared radiation within ultra-thin metallic films is technologically relevant for different thermal engineering applications and optoelectronic devices, as well as for fundamental research on sub-nanometer ... -
Steering surface plasmons with a graded index dielectric medium
Beruete Díaz, Miguel ; Pacheco-Peña, Víctor (IOP Publishing, 2018)
Artículo / Artikulua
The arbitrary control of surface plasmon (SP) propagation has become an intense research topic for several decades. This is due to the fact that they can be used in a variety of fields such as optical trapping, nanoantennas ... -
Suppressed-scattering spectral windows for radiative cooling applications
Pérez Escudero, José Manuel ; Torres García, Alicia E. ; Lezaun Capdevila, Carlos; Caggiano, Antonio; Peralta, Ignacio; Dolado, Jorge S.; Beruete Díaz, Miguel ; Liberal Olleta, Íñigo (Optica, 2023)
Artículo / Artikulua
The scattering of light by resonant nanoparticles is a key process for enhancing the solar reflectance in daylight radiative cooling. Here, we investigate the impact of material dispersion on the scattering performance of ... -
Tenderness of PGI "Ternera de Navarra" beef samples determined by FTIR-MIR spectroscopy
Beriain Apesteguía, María José ; Lozano Saiz, María; Echeverría Morrás, Jesús ; Murillo Arbizu, María Teresa ; Insausti Barrenetxea, Kizkitza ; Beruete Díaz, Miguel (MDPI, 2022)
Artículo / Artikulua
Understanding meat quality attribute changes during ageing by using non-destructive techniques is an emergent pursuit in the agroindustry research field. Using beef certified samples from the protected geographical indication ... -
THz sensing with anomalous extraordinary optical transmission hole arrays
Jáuregui López, Irati ; Rodríguez Ulibarri, Pablo ; Kuznetsov, Sergei A.; Nikolaev, Nazar A.; Beruete Díaz, Miguel (MDPI, 2018)
Artículo / Artikulua
Subwavelength hole array (HA) metasurfaces support the so-called extraordinary optical transmission (EOT) resonance that has already been exploited for sensing. In this work, we demonstrate the superior performance of a ... -
Tripod-loop metasurfaces for terahertz-sensing applications: a comparison
Jáuregui López, Irati ; Orazbayev, Bakhtiyar ; Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (MDPI, 2020)
Artículo / Artikulua
The high electric field intensity achieved on the surface of sensors based on metasurfaces (metasensors) makes them an excellent alternative for sensing applications where the volume of the sample to be identified is tiny ... -
Ultrathin and high-efficiency Pancharatnam-Berry phase metalens for millimeter waves
Moreno-Peñarrubia, Alexia; Teniente Vallinas, Jorge ; Kuznetsov, Sergei A.; Orazbayev, Bakhtiyar ; Beruete Díaz, Miguel (AIP Publishing, 2021)
Artículo / Artikulua
Applying the Pancharatnam–Berry (PB) principle to half-wave plate (HWP) metasurfaces allows the manipulation of wavefronts along with the conversion of the handedness of circularly polarized incident waves by simply rotating ... -
Ultrathin sub-terahertz half-wave plate with high conversion efficiency based on zigzag metasurface
Moreno-Peñarrubia, Alexia; Kuznetsov, Sergei A.; Beruete Díaz, Miguel (IEEE, 2020)
Artículo / Artikulua
In this communication, an ultrathin transmissive half-wave plate (HWP) based on a bi-layered zigzag metasurface operating at the lower frequency edge of the terahertz (THz) spectrum is numerically and experimentally studied. ...
