Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por título
Mostrando ítems 109-128 de 391
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Evaluation of the Brillouin precursor performance for ultra wide band intra-body technologies
Vázquez Alejos, Ana; Falcone Lanas, Francisco
; Dawood, Muhammad; Aguirre Gallego, Erik ; Azpilicueta Fernández de las Heras, Leyre (Taylor&Francis, 2013)
Artículo / Artikulua 
In this letter, we describe the formation and the evolution of Brillouin precursorfields through human tissues by using a frequency-domain analysis technique and amulti-pole Cole–Cole model to characterize the dielectric ... -
Evanescently fed electromagnetic band-gap horn antennas and arrays
Khromova, Irina ; Ederra Urzainqui, Íñigo ; Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Esselle, Karu P. (IEEE, 2012)
Artículo / Artikulua
The design of a horn antenna based on electromagnetic band-gap structures (EBGs) and fed by evanescent fields in the containing periodic structure is presented. Such all-dielectric antennas can form compact arrays and ... -
Experimental and numerical characterization of a hybrid Fabry-Perot cavity for temperature sensing
López Aldaba, Aitor; Rodrigues Pinto, Ana Margarida ; López-Amo Sáinz, Manuel ; Frazão, Orlando; Santos, José Luís; Baptista, José Manuel; Baierl, Hardy; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe (MDPI, 2015)
Artículo / Artikulua
A hybrid Fabry-Pérot cavity sensing head based on a four-bridge microstructured fiber is characterized for temperature sensing. The characterization of this cavity is performed numerically and experimentally in the L-band. ... -
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 lossy mode and surface plasmon resonance generation with Kretschmann configuration
Del Villar, Ignacio ; Torres Landívar, Víctor ; Beruete Díaz, Miguel (Optical Society of America, 2015)
Artículo / Artikulua
Lossy mode resonances (LMRs) and surface plasmon resonaces (SPRs) are obtained experimentally with a Kretschmann configuration using a BK7 glass prism with all sides polished and coated with indium tin oxide (ITO). The ... -
Experimental demonstration of lossy mode resonance generation for transverse-magnetic and transverse-electric polarizations
Ruiz Zamarreño, Carlos ; Zubiate Orzanco, Pablo ; Sagüés García, Mikel ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Optica Publishing Group, 2013)
Artículo / Artikulua
This Letter, presents the fabrication of lossy mode resonance (LMR) devices based on titanium dioxide (TiO2)/ poly(sodium 4-styrenesulfonate) (PSS) coatings deposited on side-polished D-shaped optical fibers. TiO2 thin ... -
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 demonstration of metasurface-based ultrathin carpet cloaks for millimetre waves
Orazbayev, Bakhtiyar ; Mohammadi Estakhri, Nasim; Alù, Andrea; Beruete Díaz, Miguel (Wiley, 2016)
Artículo / Artikulua
A metasurface carpet cloak for millimeter-wave range with polarization-independent performance is experimentally demonstrated. It is shown that the cloak is able to mimic the ground plane by fully restoring the amplitude ... -
Experimental demonstration of phase resonances in metallic compound gratings with subwavelength slits in the millimeter wave regime
Navarro Cía, Miguel ; Skigin, Diana C.; Beruete Díaz, Miguel ; Sorolla Ayza, Mario (AIP Publishing, 2009)
Artículo / Artikulua
We provide experimental evidence of phase resonances in metallic periodic structures in which each period comprises several subwavelength slits of the same width. We have analyzed and measured the response of these ... -
Experimental evidence of coherence resonance in a time-delayed bistable system
Arizaleta Arteaga, Mikel ; Valencia, Miguel; Sciamanna, Marc; Thienpont, Hugo; López-Amo Sáinz, Manuel ; Panajotov, Krassimir (APS Physics, 2007)
Artículo / Artikulua
We report on the experimental observation of coherence resonance in a bistable system with delay. Our system consists of a vertical-cavity surface-emitting laser subject to time-delayed optical feedback simultaneously from ... -
Experimental optimization in terms of power stability and output power of highly Er-doped fiber lasers with single and hybrid cavities
Pérez Herrera, Rosa Ana ; Chen, Shuying; Zhao, Weizhong; Sun, Tong; López-Amo Sáinz, Manuel (Taylor & Francis, 2010)
Artículo / Artikulua
In this article, the output power stability of several different highly erbiumdoped fiber ring lasers, as a function of the laser parameters, is experimentally investigated. The study is focused on the optimization of ... -
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 ... -
Experimental study and sensing applications of polarization-dependent lossy mode resonances generated by D-shape coated optical fibers
Zubiate Orzanco, Pablo ; Ruiz Zamarreño, Carlos ; Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (IEEE, 2015)
Artículo / Artikulua
The fabrication and characterization of an optical fiber refractometer based on Lossy Mode Resonances (LMR) is presented. TiO2/ poly (sodium 4-styrenesulfonate) (PSS) coatings deposited on side-polished D-shaped optical ... -
Experimental validation of a Ku-band dual circularly polarized metasurface antenna
Tellechea Pereda, Amagoia ; Caminita, Francesco; Martini, Enrica; Ederra Urzainqui, Íñigo ; Teniente Vallinas, Jorge ; Iriarte Galarregui, Juan Carlos ; Gonzalo García, Ramón ; Maci, Stefano (IEEE, 2018)
Artículo / Artikulua
The experimental validation of a Ku-band dual circularly polarized (CP) broadside-beam metasurface (MTS) antenna is presented. A radially modulated anisotropic single layer MTS has been synthesised employing sub-wavelength ... -
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 ... -
Extraordinary transmission and left-handed propagation in miniaturized stacks of doubly periodic subwavelength hole arrays
Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Navarro Cía, Miguel ; Falcone Lanas, Francisco Javier ; Campillo, Igor; Lomakin, Vitaliy (Optical Society of America, 2007)
Artículo / Artikulua
Metallic plates embedded between dielectric slabs and perforated by rectangular arrays of subwavelength holes with a dense periodicity in one of the directions support extraordinary transmission (ET) phenomena, viz. strong ... -
Fabrication of Bragg gratings on the end facet of standard optical fibers by sputtering the same material
Ascorbe Muruzabal, Joaquín ; Corres Sanz, Jesús María ; Del Villar, Ignacio ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (IEEE, 2016)
Artículo / Artikulua
A sputtering process has been applied to deposit quarter-wavelength stacks on the end facet of cleaved optical fibers by using only one sputtering target. Standard multimode optical fibers were used as substrates to fabricate ... -
Fe-rich ferromagnetic wires for self-sensing materials
Liberal Olleta, Íñigo ; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón (IEEE, 2012)
Artículo / Artikulua
The possibility of using Fe-rich wires in mechanical stress self-sensing materials is investigated. To this end, a retrieval technique aimed to characterize the high-frequency magnetoimpedance effect in ferromagnetic wires ... -
Femtomolar detection by nanocoated fiber label-free biosensors
Chiavaioli, Francesco; Zubiate Orzanco, Pablo ; Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Giannetti, Ambra; Tombelli, Sara; Trono, Cosimo; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio ; Baldini, Francesco (ACS, 2018)
Artículo / Artikulua
The advent of optical fibre-based biosensors combined with that of nanotechnologies has provided an oppor-tunity for developing in situ, portable, lightweight, versatile and high-performance optical sensing platforms. We ... -
Fiber cavity ring down and gain amplification effect
Silva, Susana; Magalhães, Regina; Pérez Herrera, Rosa Ana ; López-Amo Sáinz, Manuel ; Marques, M. B.; Frazão, Orlando (Springer Nature, 2016)
Artículo / Artikulua
The effect of an erbium-doped fiber amplifier (EDFA) placed inside the fiber ring of a cavity ring down (CRD) configuration is studied. The limitations and advantages of this configuration are discussed, and the study of ...
