Listar Artículos de revista - Aldizkari artikuluak por autor UPNA "Del Villar, Ignacio"
Mostrando ítems 1-20 de 102
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Advances in fiber optic DNA-based sensors: a review
Santano, Desiree
; Urrutia Azcona, Aitor ; Ruiz Zamarreño, Carlos ; Del Villar, Ignacio (IEEE, 2021)
Artículo / Artikulua 
DNA is becoming increasingly important in the domain of optical fiber sensors, either as a tool for biosensing, or as a target to detect. In this review the main contributions of the last years are presented both in the ... -
Ag@Fe3O4-coated U-shaped plastic optical fiber sensor for H2S detection
López Vargas, Juan David; Dante, Alex; Allil, Regina C.; Del Villar, Ignacio ; Matías Maestro, Ignacio ; Werneck, Marcelo M. (Elsevier, 2024)
Artículo / Artikulua
This work presents the fabrication of U-shaped plastic optical fiber (POF) sensors for hydrogen sulfide (H2S) detection, coated with Fe3O4 nanoparticles synthetized using the Pulsed Laser Ablation in Liquid (PLAL) technique. ... -
All-fiber ellipsometer for nanoscale dielectric coatings
Imas González, José Javier ; Matías Maestro, Ignacio ; Del Villar, Ignacio ; Ozcariz Celaya, Aritz ; Ruiz Zamarreño, Carlos ; Albert, Jacques (Chinese Academy of Sciences, 2023)
Artículo / Artikulua
Multiple mode resonance shifts in tilted fiber Bragg gratings (TFBGs) are used to simultaneously measure the thickness and the refractive index of TiO2 thin films formed by Atomic Layer Deposition (ALD) on optical fibers. ... -
Analysis of one-dimensional photonic band gap structures with a liquid crystal defect towards development of fiber-optic tunable wavelength filters
Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier ; Claus, Richard O. (Optical Society of America, 2003)
Artículo / Artikulua
A theoretical analysis of a fiber optical photonic band gap based tunable wavelength filter is presented. The design presented here is based on the quarter wave reflector with a liquid crystal defect layer in the middle ... -
Arc-induced long period fiber gratings in the dispersion turning points
Colaço, Celso; Caldas, Paulo; Del Villar, Ignacio ; Chibante, Rui; Rego, Gaspar (IEEEOptical Society of America, 2016)
Artículo / Artikulua
We demonstrated the possibility to inscribe longperiod fiber gratings (LPFGs) in a B/Ge codoped fiber by using grating periods shorter than 150 μm. We also have arc-induced in the SMF 28 fiber an LPFG in the dispersion ... -
Bloch waves at the surface of a single-layer coating D-shaped photonic crystal fiber
González Valencia, Esteban; Del Villar, Ignacio ; Torres, Pedro (Optical Society of America, 2020)
Artículo / Artikulua
Bloch surface wave (BSW) platforms are particularly interesting for light confinement and surface sensitivity, as an alternative to the metal-based surface plasmon polaritons (SPP). However, most of the reported BSW platforms ... -
Deposition of an overlay with electrostactic self-assembly method in long period fiber gratings
Del Villar, Ignacio ; Achaerandio, Miguel ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Optical Society of America, 2005)
Artículo / Artikulua
It was proved that the deposition of an overlay material onto a long-period fiber grating causes important shifts in the wavelengths of the typical attenuation bands that are caused by coupling between cladding and core ... -
Deposition of coatings on long-period fiber gratings: tunnel effect analogy
Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Springer, 2006)
Artículo / Artikulua
The sensitivity of Long-period fiber gratings (LPFGs), coated with high-refractive-index thin film overlays, to the refractive index and the thickness of the overlay, and to the ambient refractive index, can be enhanced ... -
Design rules for lossy mode resonance based sensors
Del Villar, Ignacio ; Hernáez Sáenz de Zaitigui, Miguel ; Ruiz Zamarreño, Carlos ; Sánchez Zábal, Pedro ; Fernández Valdivielso, Carlos ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (Optical Society of America, 2012)
Artículo / Artikulua
Lossy mode resonances can be obtained in the transmission spectrum of cladding removed multimode optical fiber coated with a thin-film. The sensitivity of these devices to changes in the properties of the coating or the ... -
Development of an optical refractometer by analysis of one-dimensional photonic bandgap structures with defects
Matías Maestro, Ignacio ; Del Villar, Ignacio ; Arregui San Martín, Francisco Javier (Optical Society of America, 2003)
Artículo / Artikulua
A theoretical analysis of an optical fiber photonic-bandgap-based refractometer is presented. The design is based on a quarter-wave ref lector with one defect. By modifying both the real and the imaginary parts of the index ... -
Direct functionalization of TiO2/PSS sensing layer for an LMR-based optical fiber reusable biosensor
Santano, Desiree ; Socorro Leránoz, Abián Bentor ; Del Villar, Ignacio (IEEE, 2023)
Artículo / Artikulua
Functionalization plays a crucial role in the development of biosensors. In this study, bioreceptors were directly immobilized onto the surface of a sensing layer after physical activation, avoiding the need for longer and ... -
Electrochemical lossy mode resonance for the detection of manganese ions
Domínguez Rodríguez, Ismel ; Corres Sanz, Jesús María ; Del Villar, Ignacio ; Mozo, Juan D.; Simerova, Radka; Sezemsky, Petr; Stranak, Vitezslav; Śmietana, Mateusz; Matías Maestro, Ignacio (Elsevier, 2023)
Artículo / Artikulua
In this work we propose electrochemical lossy mode resonance (eLMR) as a powerful method for the detection of manganese (Mn) ions. The sensor is based on a simple planar waveguide (sodasingle bondlime glass coverslip) ... -
Enhancement of lossy mode resonance sensing properties by the introduction of an intermediate low-refractive-index layer
Armas, Dayron; Kwietniewski, Norbert; Matías Maestro, Ignacio ; Burnat, Dariusz; Śmietana, Mateusz; Del Villar, Ignacio (Optica, 2023)
Artículo / Artikulua
Devices based on the lossy mode resonance (LMR) effect have found numerous sensing applications. Herein, the enhancement of the sensing properties by the introduction of an intermediate layer between the substrate and the ... -
Enhancement of sensitivity in long period fiber gratings with deposition of low refractive index materials
Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Optical Society of America, 2005)
Artículo / Artikulua
It was proved [Opt. Lett. 30, 720 (2005)] that the deposition of an overlay of higher refractive index than that of the cladding on a long-period fiber grating (LPFG) causes large shifts in the attenuation bands induced by ... -
ESA-based in-fiber nanocavity for hydrogen–peroxide detection
Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier ; Claus, Richard O. (IEEE, 2005)
Artículo / Artikulua
A fiber-optic sensor sensitive to hydrogen peroxide has been designed based on the electrostatic layer-by-layer selfassembly method. Prussian blue has been deposited in a polymeric structure formed by Poly(allylamine ... -
Etched and nanocoated single-mode multimode single-mode (SMS) fibers for detection of wind turbine gearbox oil degradation
Del Villar, Ignacio ; Goñi Carnicero, Jaime ; Vicente Gómara, Adrián ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (IEEE, 2019)
Artículo / Artikulua
The application of an etching process in a single-mode multimode single-mode (SMS) fiber allows monitoring the change of refractive index of wind turbine gearbox oil due to temperature and degradation with a limitation at ... -
Etched LPFGs in reflective configuration for sensitivity and attenuation band depth increase
Del Villar, Ignacio ; Socorro Leránoz, Abián Bentor ; Corres Sanz, Jesús María ; Matías Maestro, Ignacio ; Cruz, José Luis; Rego, Gaspar (IEEE, 2016)
Artículo / Artikulua
A reflection configuration setup for long-period fiber gratings is presented. It permits to obtain a unique band with attenuation double than that obtained in transmission configuration, which is interesting for ... -
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 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 ... -
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 ...
