Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por título
Mostrando ítems 259-278 de 391
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An optimized method based on digitalized Lissajous curve to determine lifetime of luminescent materials on optical fiber sensors
Ridruejo Muro, Adrián; Acha Morrás, Nerea de
; Elosúa Aguado, César ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Hindawi, 2016)
Artículo / Artikulua 
A method is proposed to determine lifetime of luminescent emissions based on the phase shift measurement employing the digitalized Lissajous representation: this diagram has been typically used with analogical algorithms, ... -
Optimized strain long-period fiber grating (LPFG) sensors operating at the dispersion turning point
Del Villar, Ignacio ; Fuentes Lorenzo, Omar ; Chiavaioli, Francesco; Corres Sanz, Jesús María ; Matías Maestro, Ignacio (IEEE, 2018)
Artículo / Artikulua
Two phenomena for enhancing the sensitivity of longperiod fiber gratings are combined toward an increase of the sensitivity to strain of this type of devices: the dispersion turning point (DTP) and the cladding diameter ... -
Optimized wireless channel characterization in large complex environments by hybrid ray launching-collaborative filtering approach
Casino, Fran; Azpilicueta Fernández de las Heras, Leyre ; López Iturri, Peio ; Aguirre Gallego, Erik ; Falcone Lanas, Francisco ; Solanas, Agustí (IEEE, 2017)
Artículo / Artikulua
Simulation techniques based on deterministic methods such as Ray Tracing and Ray Launching, are widely used to perform radioplanning tasks. However, the quality of the simulations depends on the number of rays and the ... -
Optimizing interoperability between video-oculographic and electromyographic systems
Navallas Irujo, Javier ; Ariz Galilea, Mikel ; Villanueva Larre, Arantxa ; San Agustín, Javier; Cabeza Laguna, Rafael (Rehabilitation Research & Development Service, 2011)
Artículo / Artikulua
A new system is presented that enhances the interoperability between a video-oculographic (VOG) system for mouse movement control and an electromyographic (EMG) system for mouse click detection. The proposed VOG-EMG system ... -
Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency
Bittencourt, V.A.S.V.; Liberal Olleta, Íñigo ; Viola Kusminskiy, Silvia (American Physical Society, 2022)
Artículo / Artikulua
Reaching strong light-matter coupling in solid-state systems has long been pursued for the implementation of scalable quantum devices. Here, we put forward a system based on a magnetized epsilon-near-zero (ENZ) medium, and ... -
Orthogonally polarized optical single sideband modulation for microwave photonics processing using stimulated Brillouin scattering
Sagüés García, Mikel ; Loayssa Lara, Alayn (Optical Society of America, 2010)
Artículo / Artikulua
We present a novel technique to generate orthogonally polarized optical single sideband modulated signals. The modulation scheme is based on all optical stimulated Brillouin scattering processing of the optical carrier of ... -
Overcoming non-local effects and Brillouin threshold limitations in Brillouin optical time domain sensors
Ruiz Lombera, Rubén; Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Mirapeix, Jesús; López Higuera, José Miguel; Loayssa Lara, Alayn (IEEE, 2015)
Artículo / Artikulua
We demonstrate, for the first time to our knowledge, a Brillouin optical time domain analysis (BOTDA) sensor that is able to operate with a probe power larger than the Brillouin threshold of the deployed sensing fiber ... -
Parameter-independent control for battery chargers based on virtual impedance emulation
Urtasun Erburu, Andoni ; Berrueta Irigoyen, Alberto ; Sanchis Gúrpide, Pablo ; Marroyo Palomo, Luis (IEEE, 2018)
Artículo / Artikulua
An effective battery voltage regulation is fundamental to extend battery lifetime and to avoid overvoltage. However, the design of this regulation is complicated due to the wide battery impedance range, which, when dealing ... -
Passive microwave component design using inverse scattering: theory and applications
Arnedo Gil, Israel ; Arregui Padilla, Iván ; Chudzik, Magdalena ; Teberio Berdún, Fernando ; Lujambio Genua, Aintzane ; Benito Pertusa, David ; Lopetegui Beregaña, José María ; Gómez Laso, Miguel Ángel (Hindawi, 2013)
Artículo / Artikulua
We briefly review different synthesis techniques for the design of passive microwave components with arbitrary frequency response, developed by our group during the last decade. We provide the theoretical foundations based ... -
Performance analysis of IEEE 802.15.4 compliant wireless devices for heterogeneous indoor home automation environments
Nazábal Urriza, Juan Antonio; López Iturri, Peio ; Azpilicueta Fernández de las Heras, Leyre ; Falcone Lanas, Francisco Javier ; Fernández Valdivielso, Carlos (Hindawi, 2012)
Artículo / Artikulua
The influence of topology as well as morphology of complex indoor scenarios in the deployment of wireless sensor networks and wireless systems applied to home and building automation systems is analyzed. The existence of ... -
Performance analysis of ZigBee wireless networks for AAL through hybrid ray launching and collaborative filtering
López Iturri, Peio ; Casino, Fran; Aguirre Gallego, Erik ; Azpilicueta Fernández de las Heras, Leyre ; Falcone Lanas, Francisco Javier ; Solanas, Agusti (Hindawi, 2016)
Artículo / Artikulua
This paper presents a novel hybrid simulation method based on the combination of an in-house developed 3D ray launching algorithm and a collaborative filtering (CF) technique, which will be used to analyze the performance ... -
Performance comparison and design guidelines for Type II and Type III PLLs
Ugarte Gil, Mikel; Carlosena García, Alfonso (Birkhauser, 2015)
Artículo / Artikulua
The advantages provided by Type III PLLs are poorly known, since these devices are very often considered unstable and difficult, or even impossible, to design. In this paper, a performance comparison between Type II and ... -
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 ... -
Phasorial differential pulse-width pair technique for long-range Brillouin optical time-domain analysis sensors
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (Optical Society of America, 2014)
Artículo / Artikulua
We introduce a novel phasorial differential pulse width pair (PDPP) method for Brillouin optical time domain analysis (BOTDA) sensors that combines spatial resolution enhancement with increased tolerance to non local ... -
Photonic crystal fiber interferometer coated with a PAH/PAA nanolayer as humidity sensor
López Torres, Diego ; Elosúa Aguado, César ; Villatoro, Joel; Zubia, Joseba; Rothhardt, Manfred; Schuster, Kay; Arregui San Martín, Francisco Javier (Elsevier, 2017)
Artículo / Artikulua
In this paper, an optical fiber interferometric humidity sensor is presented. The device consists of 1 cmlong segment of photonic crystal fiber (PCF) spliced to standard single mode fibers (SMFs), forming an interferometer: ... -
Photonic crystal fiber temperature sensor based on quantum dot nanocoatings
Larrión Zabaleta, Beatriz; Hernáez Sáenz de Zaitigui, Miguel ; Arregui San Martín, Francisco Javier ; Goicoechea Fernández, Javier ; Bravo Larrea, Javier ; Matías Maestro, Ignacio (Hindawi / Wiley, 2009)
Artículo / Artikulua
Quantum dot nanocoatings have been deposited by means of the Layer-by-Layer technique on the inner holes of Photonic Crystal Fibers (PCFs) for the fabrication of temperature sensors. The optical properties of these sensors ... -
Photonic crystal fibers for sensing applications
Rodrigues Pinto, Ana Margarida; López-Amo Sáinz, Manuel (Hindawi Publishing Corporation, 2012)
Artículo / Artikulua
Photonic crystal fibers are a kind of fiber optics that present a diversity of new and improved features beyond what conventional optical fibers can offer. Due to their unique geometric structure, photonic crystal fibers ... -
Planar holographic metasurfaces for terahertz focusing
Kuznetsov, Sergei A.; Astafev, Mikhail A.; Beruete Díaz, Miguel ; Navarro Cía, Miguel (Springer Nature, 2015)
Artículo / Artikulua
Scientists and laymen alike have always been fascinated by the ability of lenses and mirrors to control light. Now, with the advent of metamaterials and their two-dimensional counterpart metasurfaces, such components can ... -
Planar magnetoinductive wave transducers: theory and applications
Freire, M. J.; Marqués, R.; Medina, Francisco; Gómez Laso, Miguel Ángel ; Martín, F. (AIP Publishing, 2004)
Artículo / Artikulua
Transduction of magnetoinductive waves (MIWs) in planar technology is demonstrated. A transducer consisting of a one-dimensional periodic array of metallic split squared ring resonators (SSRR), placed between a pair of ... -
Planoconcave lens by negative refraction of stacked subwavelength hole arrays
Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Sorolla Ayza, Mario ; Campillo, Igor (Optical Society of America, 2008)
Artículo / Artikulua
This work presents the design of a planoconcave parabolic negative index metamaterial lens operating at millimeter wavelengths fabricated by using stacked subwavelength hole arrays. A staircase approximation to the ideal ...
