Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por autor UPNA "Del Villar, Ignacio"
Mostrando ítems 1-20 de 53
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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 ... -
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 ... -
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 ... -
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 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 ... -
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 optic multiple-wavelength filter based on one dimensional photonic bandgap structures with defects
Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (IEEE, 2004)
Artículo / Artikulua
In this paper, a theoretical analysis is given of an optical fiber multiple-wavelength tunable filter based on a onedimensional (1-D) photonic bandgap (PBG) structure with four defects. To understand the positioning of ... -
Fiber-optic nanorefractometer based on one-dimensional photonic-bandgap structures with two defects
Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (IEEE, 2004)
Artículo / Artikulua
A theoretical analysis of a fiber-optic photonic- bandgap (PBG)-based nanorefractometer is presented. Changes up to 11.2 dB in the optical output power in an index of refraction range of 1.7 with a sensitivity of 1.5 ... -
Fringe generation with non-uniformly coated long-period fiber gratings
Del Villar, Ignacio ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio ; Cusano, Andrea; Paladino, Domenico; Cutolo, Antonello (Optical Society of America, 2007)
Artículo / Artikulua
In this work, the spectral characteristics of non-uniform symmetrically ring shaped coatings deposited on long-period fiber gratings (LPFGs) have been theoretically and experimentally investigated. To optimize the ... -
Generation of lossy mode resonances by deposition of high-refractive-index coatings on uncladded multimode optical fibers
Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Sánchez Zábal, Pedro ; Hernáez Sáenz de Zaitigui, Miguel ; Fernández Valdivielso, Carlos ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (IOP Publishing Ltd, 2010)
Artículo / Artikulua
A comparative study of lossy mode resonances generated by depositing two different materials is presented. The two materials selected are indium tin oxide (ITO) and indium oxide. The two materials present different ... -
Generation of lossy mode resonances with absorbing thin-films
Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Hernáez Sáenz de Zaitigui, Miguel ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (IEEE, 2010)
Artículo / Artikulua
The generation of lossy mode resonances with absorbing thin-films is analyzed with electromagnetic theory. The main differences with surface plasmon resonances are presented and some rules are given towards an optimum ... -
Generation of selective fringes with cascaded long-period gratings
Del Villar, Ignacio ; Achaerandio, Miguel ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (IEEE, 2006)
Artículo / Artikulua
The inscription of cascaded long-period gratings of different periods in optical fiber permits us to obtain both narrowband and wideband filters in the same spectrum. If used as an optical transducer, it may permit us ... -
Generation of surface plasmon resonance and lossy mode resonance by thermal treatment of ITO thin-films
Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Hernáez Sáenz de Zaitigui, Miguel ; Sánchez Zábal, Pedro ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (Elsevier, 2014)
Artículo / Artikulua
Silicon wafers coated with IndiumTinOxide (ITO) by application of sputtering technique have been characterized after different post-annealing techniques, showing that this last factor is critical for the quality of the ... -
Giant sensitivity of optical fiber sensors by means of lossy moderesonance
Arregui San Martín, Francisco Javier ; Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Zubiate Orzanco, Pablo ; Matías Maestro, Ignacio (Elsevier, 2016)
Artículo / Artikulua
Here we show an optical refractometer with a giant sensitivity of 304,360 nm per refractive index unit(nm/RIU). This sensitivity corresponds to a resolution of 3.28 × 10−9RIU if a standard optical spectrumanalyzer with a ...
