Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por título

Diffusive-light invisibility cloak for transient illumination

Orazbayev, Bakhtiyar

; Beruete Díaz, Miguel

; Martínez, Alejandro; García Meca, Carlos (American Physical Society, 2016) Artículo / Artikulua

Invisibility in a diffusive-light-scattering medium has been recently demonstrated by employing a scattering-cancellation core-shell cloak. Unlike nondiffusive cloaks, such a device can be simultaneously macroscopic, ...

Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy

Khromova, Irina

; Navarro Cía, Miguel

; Brener, I.; Reno, J. L.; Ponomarev, A.; Mitrofanov, Oleg (AIP Publishing, 2015) Artículo / Artikulua

We observe dipole resonances in thin conductive carbon micro-fibers by detecting an enhanced electric field in the near-field of a single fiber at terahertz (THz) frequencies. Time-domain analysis of the electric field ...

Dispersion properties of an elliptical patch with cross shaped aperture for synchronized propagation of transverse magnetic and electric surface waves

Tellechea Pereda, Amagoia

; Ederra Urzainqui, Íñigo

; Gonzalo García, Ramón

; Iriarte Galarregui, Juan Carlos

(MDPI, 2018) Artículo / Artikulua

This paper presents a novel pixel geometry for the implementation of metasurfaces requiring synchronized phase propagation of transverse magnetic (TM) and transverse electric (TE) modes. The pixel is composed by an elliptical ...

Double-port slotted-antenna with multiple miniaturized radiators for wideband wireless communication systems and portable devices

Alibakhshikenari, Mohammad; Khalily, Mohsen; Virdee, Bal S.; Ali, Abdul; Shukla, Panchamkumar; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier

; Limiti, Ernesto (Electromagnetics Academy, 2019) Artículo / Artikulua

Proof-of-concept is presented of a novel slot antenna structure with two excitation ports. Although this antenna provides a wide impedance bandwidth, its peak gain and optimum radiation efficiency are observed at its ...

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.

Dual circularly polarized broadside beam metasurface antenna

Ederra Urzainqui, Íñigo

; Tellechea Pereda, Amagoia

; Caminita, Francesco; Martini, Enrica; Iriarte Galarregui, Juan Carlos

; Gonzalo García, Ramón

; Maci, Stefano (IEEE, 2016) Artículo / Artikulua

This paper presents the design of a modulated metasurface (MTS) antenna capable to provide both righthand (RH) and left-hand (LH) circularly polarized (CP) boresight radiation at Ku-band (13.5 GHz). This antenna is based ...

Dual stage ytterbium doped fiber laser in MOPA configuration

Fernández Vallejo, Montserrat

; Monelli, D.; Passaro, D.; Cucinotta, A.; Selleri, S.; López-Amo Sáinz, Manuel

(Bentham Open, 2012) Artículo / Artikulua

We report the experimental demonstration of an Ytterbium doped fiber laser (YDFL) composed by two stages in cascade. Two sorts of Ytterbium doped fiber (YDF) with different concentration have been used. A proper characterization ...

Dual-wavelength single-longitudinal-mode erbium fiber laser for temperature measurements

Díaz Lucas, Silvia

; López-Amo Sáinz, Manuel

(SPIE, 2014) Artículo / Artikulua

A dual-wavelength erbium fiber laser with single-longitudinal-mode characteristic is proposed and demonstrated. The system uses a 7-m-long highly doped erbium-doped fiber as the primary gain medium while two fiber Bragg ...

Dynamic BOTDA measurements based on Brillouin phase-shift and RF demodulation

Urricelqui Polvorinos, Javier

; Zornoza Indart, Ander; Sagüés García, Mikel

; Loayssa Lara, Alayn

(Optical Society of America, 2012) Artículo / Artikulua

We demonstrate a novel dynamic BOTDA sensor based, for the first time to our knowledge, on the use of the Brillouin phase shift in addition to the conventional Brillouin gain. This provides the advantage of measurements ...

ECOAL project: delivering solutions for integrated monitoring of coal-related fires supported on optical fiber sensing technology

Ribeiro, Joana; Viveiros, Duarte; Ferreira, João; López Gil, Alexia; Domínguez López, Alejandro; Martins, Hugo F.; Pérez Herrera, Rosa Ana

; López Aldaba, Aitor

; Duarte, Lia; Rodrigues Pinto, Ana Margarida

; Martín López, Sonia; Baierl, Hardy; Jamier, Raphael; Rougier, Sébastien; Auguste, Jean-Louis; Teodoro, Ana Cláudia; Gonçalves, José Alberto; Esteban, Óscar; Santos, José Luís; Roy, Philippe; López-Amo Sáinz, Manuel

; González Herráez, Miguel; Baptista, José Manuel; Flores, Deolinda (MDPI, 2017) Artículo / Artikulua

The combustion of coal wastes resulting from mining is of particular environmental concern, and the importance of proper management involving real-time assessment of their status and identification of probable evolution ...

Effect of both protective and reducing agents in the synthesis of multicolor silver nanoparticles

Rivero Fuente, Pedro J.

; Goicoechea Fernández, Javier

; Urrutia Azcona, Aitor

; Arregui San Martín, Francisco Javier

(Springer, 2013) Artículo / Artikulua

In this paper, the influence of variable molar ratios between reducing and loading agents (1:100, 1:50, 1:20, 1:10, 1:5, 1:2, 1:1, 2:1) and between protective and loading agents (0.3:1, 0.75:1, 1.5:1, 3:1, 7.5:1, 30:1, ...

Effect of the glottal source and the vocal tract on the partials amplitude of vibrato in male voices

Arroabarren Alemán, Ixone

; Carlosena García, Alfonso

(Acoustical Society of America, 2006) Artículo / Artikulua

In this paper the production of vocal vibrato is investigated. The most relevant features of the acoustical vibrato signal, frequency and amplitude variations of the partials, will be related to the voice production ...

Effects of pump pulse extinction ratio in Brillouin optical time-domain analysis sensors

Iribas Pardo, Haritz

; Mariñelarena Ollacarizqueta, Jon

; Feng, Cheng; Urricelqui Polvorinos, Javier

; Schneider, Thomas; Loayssa Lara, Alayn

(Optical Society of America, 2017) Artículo / Artikulua

We report on two previously unknown non-local effects that have been found to impair Brillouin optical time-domain analysis (BOTDA) sensors that deploy limited extinction ratio (ER) pump pulses. The first one originates ...

Electro-thermal modelling of a supercapacitor and experimental validation

Berrueta Irigoyen, Alberto

; San Martín Biurrun, Idoia

; Hernández, Andoni; Ursúa Rubio, Alfredo

; Sanchis Gúrpide, Pablo

(Elsevier, 2014) Artículo / Artikulua

This paper reports on the electro-thermal modelling of a Maxwell supercapacitor (SC), model BMOD0083 with a rated capacitance of 83 F and rated voltage of 48 V. One electrical equivalent circuit was used to model 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 ...

Electroinductive waves role in left-handed stacked complementary split rings resonators

Beruete Díaz, Miguel

; Aznabet, Mariem; Navarro Cía, Miguel

; El Mrabet, O.; Falcone Lanas, Francisco Javier

; Aknin, N.; Essaaidi, M.; Sorolla Ayza, Mario

(Optical Society of America, 2009) Artículo / Artikulua

In this letter it is presented a Left-Handed Metamaterial design route based upon stacked arrays of screens made of complementary split rings resonators under normal incidence in the microwave regime. Computation of ...

Electromagnetic cloaking with canonical spiral inclusions

Guven, K.; Sáenz Sáinz, Elena

; Gonzalo García, Ramón

; Ozbay, Ekmel; Tretyakov, Sergei A. (IOP Publishing Ltd., 2008) Artículo / Artikulua

We report an electromagnetic cloaking structure that is composed of identical canonical spiral particles. By using the Clausius-Mosotti formula, the electric and magnetic polarizabilities of a single spiral particle are ...

Electromangetic force density in electrically and magnetically polarizable media

Liberal Olleta, Íñigo

; Ederra Urzainqui, Íñigo

; Gonzalo García, Ramón

; Ziolkowski, Richard W. (American Physical Society, 2013) Artículo / Artikulua

The force density induced by electromagnetic fields in electrically and magnetically polarizable media is studied analytically. Different formulations of the force density as a function of field-related quantities, ...

Electromyographic, cerebral, and muscle hemodynamic responses during intermittent, isometric contractions of the biceps brachii at three submaximal intensities

Bhambhani, Yagesh; Fan, Jui Lin; Place, Nicolas; Rodríguez Falces, Javier

; Kayser, Bengt (Frontiers Media, 2014) Artículo / Artikulua

This study examined the electromyographic, cerebral and muscle hemodynamic responses during intermittent isometric contractions of biceps brachii at 20, 40, and 60% of maximal voluntary contraction (MVC). Eleven volunteers ...

Electronic controlled device for the analysis and design of photovoltaic systems

Sanchis Gúrpide, Pablo

; López Taberna, Jesús

; Ursúa Rubio, Alfredo

; Marroyo Palomo, Luis

(IEEE, 2005) Artículo / Artikulua

The characterization and design of photovoltaic systems is a difficult issue due to the variable operation atmospheric conditions. With this aim, simulators and measurement equipments have been proposed. However, most of ...