Abián Bentor Socorro Leránoz

Abián Bentor Socorro Leránoz
Universidad Pública de Navarra | UPNA · Department of Electrical Electronic and Communication Engineering

Doctor of Telecommunications Engineering

About

71
Publications
8,803
Reads
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874
Citations
Additional affiliations
September 2019 - present
Universidad Pública de Navarra
Position
  • Professor (Associate)
September 2016 - August 2019
Universidad Pública de Navarra
Position
  • Professor (Assistant)
May 2015 - August 2016
Universidad Pública de Navarra
Position
  • PostDoc Position
Education
October 2010 - October 2012
Universidad Pública de Navarra
Field of study
  • Biomedical Engineering
September 2002 - January 2010
Universidad Pública de Navarra
Field of study
  • Engineering

Publications

Publications (71)
Article
Full-text available
Alzheimer’s disease (AD) is one of the most common neurodegenerative illnesses displaying the highest death rate in old persons. However, the existing AD diagnostic system remains elusive due to lack of a technology that may ensure enough sensitivity and reproducibility, detection accuracy and specificity. Here we report a straightforward approach...
Article
Full-text available
The development of resonance phenomena-based optical biosensors has gained relevance in recent years due to the excellent optical fiber properties and progress in the research on materials and techniques that allow resonance generation. However, for lossy mode resonance (LMR)-based sensors, the optical fiber presents disadvantages, such as the need...
Article
Full-text available
There exists an increasing interest in monitoring low concentrations of biochemical species, as they allow the early-stage detection of illnesses or the monitoring of the environment quality. Thus, both companies and research groups are focused on the development of accurate, fast and highly sensitive biosensors. Optical fiber sensors have been wid...
Conference Paper
Full-text available
Nowadays, the implementation of automated manufacturing processes within a wide variety of industrial environments is not understood without the Industry 4.0 concept and the context-aware possibilities given by the Industrial Internet of Things (IIoT). In this sense, Wireless Sensor Networks (WSN) play a key role due to their inherent mobility, eas...
Article
Full-text available
Nowadays, the implementation of automated manufacturing processes within a wide variety of industrial environments is not understood without the Industry 4.0 concept and the context-aware possibilities given by the Industrial Internet of Things (IIoT). In this sense, Wireless Sensor Networks (WSN) play a key role due to their inherent mobility, eas...
Conference Paper
One of the main challenges that Engineering Schools are facing is to attract newcomers to scientific and engineering disciplines and ultimately, to undertake the corresponding undergraduate programs linked with science and engineering. In this work, an interactive framework implemented at the Telecommunication and Industrial Engineering School at t...
Article
This contribution reports the development and characterization of an optical system based on parallel Fiber Bragg Gratings (FBGs) to monitor the movements of the wrist and fingers of a hand. The system consisted of a reflective configuration made of FBGs detecting the movements of the fingers and one more located on the wrist as a reference. All FB...
Article
This paper presents a complete study on the spectral behavior of a multimode-coreless-multimode fiber-optic structure, as well as its application as a refractometer and a liquid level sensor. The combination of two standard multimode fibers fused to a coreless fiber segment allows generating narrow interferometric bands in the optical spectrum, who...
Article
Full-text available
During the last decades, both governments and companies have been committed to the continuous checking of biological parameters, which can prevent extra costs to administrations. A very efficient way to address this issue is by designing biosensors. This contribution reviews the advances made using optical fibre technology, which have lately agglut...
Article
The performance of E-SMS (Etched Singlemode-Multimode-Singlemode) optical fiber structures as immunosensors has been assessed by the implementation of antibody/antigen immunoassays. Through this procedure it has been proven that E-SMS structures are effective and suitable optical platforms for label-free biosensing. Using the phase shift and tracki...
Conference Paper
This work presents an etched single-mode – multimode – single-mode structure that detects the solid-to-liquid change of state of the water due to an increased refractive index sensitivity within the 1.308 – 1.321 RIU range.
Chapter
Along this chapter, a different point of view on the sensing uses of optical fibre is shown, focusing on its applicability to medical diagnostics. A wide majority of the fibre-optic-based structures described in this book can be used in medicine. But there are some challenges for fibre-optics to be fulfilled in the future when talking about healthc...
Article
Full-text available
The measurement of chemical and biomedical parameters can take advantage of the features exclusively offered by optical fibre: passive nature, electromagnetic immunity and chemical stability are some of the most relevant ones. The small dimensions of the fibre generally require that the sensing material be loaded into a supporting matrix whose morp...
Article
Full-text available
The diameter of long-period fiber gratings (LPFGs) fabricated in optical fibers with a low cutoff wavelength was be reduced by hydrofluoric acid etching, enhancing the sensitivity to refractive index by more than a factor of 3, to 2611 nm/refractive index unit in the range from 1.333 to 1.4278. The grating period selected for the LPFGs allowed acce...
Article
Full-text available
In this work, the monitoring of the etching process up to a diameter of 30 µm of two LPFG structures has been compared, one of them had initially 125 µm, whereas the second one had 80 µm. By tracking the wavelength shift of the resonance bands during the etching process it is possible to check the quality of etching process (the 80 µm fibre perform...
Article
Full-text available
A novel temperature sensor is presented based on a multiwavelength erbium-doped fiber ring laser. The laser is comprised of fiber Bragg grating reflectors as the oscillation wavelength selecting filters. The performance of the temperature sensor in terms of both wavelength and laser output power was investigated, as well as the application of this...
Article
The sensitivity of a liquid level sensor based on a single-mode-multimode-single-mode (SMS) fiber structure has been increased by hydrofluoric acid etching. The etching process was analyzed and monitored both theoretical and experimentally, which permitted to observe that a sinusoidal spectrum can be obtained for low diameters. As an example, a 2.7...
Article
The development of an optical fiber refractometer by HF etching and sputtering deposition of a thin-film of indium tin oxide (ITO) on a single-mode-multimode-single-mode (SMS) fiber structure has been analyzed with the aim of improving the sensitivity to changes of the refractive index (RI) of the external medium. The device is sensitive to the RI...
Article
A novel and high sensitive IgG – anti-IgG biosensor based on multimode interference (MMI) induced through a single-mode – multimode – single-mode (SMS) optical fiber structure is developed in this contribution. First, an improvement of the performance of a basic 125-micron-diameter SMS structure is carried out by etching the optical waveguide cladd...
Conference Paper
A novel immunosensor based on lossy mode resonances (LMRs) induced in optical fibers is developed in this contribution. Indium tin oxide (ITO) is sputtered on the optical substrate to generate an LMR in the transmission spectrum. Type G immunoglobulins (IgGs) are then attached to the ITO-coated fiber using 3-glycidopropyl-trimethoxysilane (GPTMS)....
Article
In this work, two novel stable multi-wavelength fiber laser configurations are proposed and demonstrated by using a spool of a single-mode fiber as an optical loop mirror and one or two fiber ring cavities, respectively. The lasers are comprised of fiber Bragg grating reflectors as the oscillation wavelength selecting filters. The influence of the...
Article
Full-text available
Lossy-mode resonance (LMR)–based optical sensing technology has emerged in the last two decades as a nanotechnological platform with very interesting and promising properties. LMR complements the metallic materials typically used in surface plasmon resonance (SPR)–based sensors, with metallic oxides and polymers. In addition, it enables one to tune...
Article
Full-text available
This work presents a refractive index sensor based on a long period fiber grating (LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning point at large wavelengths. The combination of these parameters results in an improved sensitivity of 8734 nm/refractive index unit (RIU) for the LP<sub>0,3</sub> mode in the 1400-...
Article
Full-text available
In this work, a thin-film consisting of 15 bilayers (estimated thickness: 210 nm) of titanium (IV) oxide and poly(sodium 4-styrenesulfonate) is simultaneously deposited onto two optical fiber structures: a single-mode—multimode—single-mode (SMS) device and a lossy mode resonance (LMR)-based device. The performance of both structures, as refractomet...
Article
Full-text available
The development of new nanocoatings onto optical fiber core is a hot topic within the optical fiber devices. The possibility of fabricating hybrid nanocoatings based on inorganic (gold nanoparticles, AuNPs) and organic materials (polymeric structure) can be performed using the layer-by-layer embedding deposition technique. The deposition of a nanos...
Conference Paper
The deposition of a non-metallic thin-film in a symmetrically coated tapered optical fiber leads to the generation of resonances due to guidance of a mode in the thin-film. At certain conditions, the resonances overlap each other, which can be avoided with an asymmetric coated tapered optical fiber, which permits to obtain resonances for TM and TE...
Chapter
A brief review of fiber-optic biosensors is presented in this entry with emphasis on the optical techniques more widely used for detection such as absorbance, fluorescence, interferometry, and electromagnetic resonances among others. A quick overview of the principle of operation and schematic descriptions of the typical configurations of these sen...
Conference Paper
Nanometer scale coatings with a complex refractive index deposited on optical fibre permit to obtain attenuation bands in the transmission spectrum, whose central wavelength coincides with the moment when a mode guided in the optical fibre cladding starts to be guided in the coating. Due to the complex refractive index of the coating, the guided mo...
Article
Full-text available
Two simple optical fibre structures that do not require the inscription of a grating, a cladding removed multimode optical fibre (CRMOF) and a single-mode multimode single-mode structure (SMS), are compared in terms of their adequateness for sensing once they are coated with thin-films. The thin-film deposited (TiO2/PSS) permits increasing the sens...
Conference Paper
Optical fiber sensors are of great interest due to their intrinsic advantages over electronic sensors. In this work, the sensing characteristics of two different and novel optical fiber devices are compared, after simultaneously depositing a thin-film using the layer-by-layer assembly deposition process. The first one is an SMS structure, formed by...
Conference Paper
A pH optical fiber sensor based on electromagnetic resonances generated in a waveguide-nanocoating interface is presented here. The incorporation of gold nanoparticles (AuNPs) into polymeric thin films has been deeply studied and the deposition of these thin-films onto an optical fiber core has been performed in order to obtain a resonance-based op...
Article
Full-text available
Integrated optical devices comprised of multiple material systems are able to achieve unique performance characteristics, enabling applications in sensing and in telecommunications. Due to ease of fabrication, the majority of previous work has focused on polymerdielectric or polymer-semiconductor systems. However, the environmental stability of pol...
Article
Full-text available
In the last 4 years, experimental evidences about the potential use of optical sensors based on Lossy Mode Resonances (LMR) have been presented in the literature. These LMR sensors have some similarities with Surface Plasmon Resonance (SPR) sensors, the gold standard in label-free, real-time biomolecular interaction analysis. In these new LMR senso...
Conference Paper
Multimode interference (MMI) devices have demonstrated to be simple and inexpensive fiber based photonic devices. This paper reviews the application of MMI devices to develop a variety of fiber sensors and tunable lasers.
Data
Full-text available
ABSTRACT In COPD there is a nationwide 10.2 % (2009) for a population of patients between 40 and 80 years old. It is considered as a cause of high mortality, morbidity and disability in Spain which has a high social and economic health impact. All this coupled with the current crisis and the absence of a comprehensive and robust system of RPM (Remo...
Article
Full-text available
Thin-film coated single-mode–multimode–single-mode (SMS) structures have been analyzed both theoretically and experimentally with the aim of detecting different refractive indices. By adequate selection of the thickness of the thin film and of the diameter of the multimode segment in the SMS structure, a seven-fold improvement can be obtained in th...
Conference Paper
This work presents the development and test of an anti-gliadin antibodies biosensor based on lossy mode resonances (LMRs) to detect celiac disease. Several polyelectrolites were used to perform layer-by-layer assembly processes in order to generate the LMR and to fabricate a gliadin-embedded thin-film. The LMR shifted 20 nm when immersed in a 5 ppm...
Article
Full-text available
By coating a single-mode-multimode-single-mode (SMS) structure with a complex refractive index thin-film the central wavelength of the transmission and attenuation bands of the optical spectrum can be shifted. By adequate selection of multimode segment length and diameter, the thin-film thickness and the thin-film refractive index, the sensitivity...
Article
Full-text available
By coating a single-mode-multimode-single-mode (SMS) structure with a high refractive index thin-film it is possible to obtain a transition of modes for specific combinations of thin-film thickness, thin-film refractive index and surrounding medium refractive index, which permits to develop devices with a high sensitivity to specific parameters. In...
Article
Lossy mode resonances can be generated with certain polymeric nanostructures, such as those obtained with a multilayered assembly of poly (allylamine hydrochloride) and poly(acrylic acid). This coating is adsorbed by the electrostatic self-assembly technique onto a tapered single-mode optical fiber, in order to evaluate its performance when detecti...
Article
Full-text available
Lossy mode resonances can be generated with certain polymeric nanostructures, such as those obtained with a multilayered assembly of poly (allylamine hydrochloride) and poly(acrylic acid). This coating is adsorbed by the electrostatic self-assembly technique onto a tapered single-mode optical fiber, in order to evaluate its performance when detecti...
Article
The geometry of a tapered single-mode optical fiber influences the formation and sensitivity of lossy mode resonances generated by the deposition of a polymeric thin-film employing the layer-by-layer electrostatic self assembly technique. In this work, several waist diameters and waist lengths of a monomode optical fiber are analyzed both experimen...
Article
Full-text available
In this work, the generation of electromagnetic resonances due to the deposition of a nanocoating on a tapered single-mode optical fiber is analyzed. The layer-by-layer technique is used to control the thickness of the nanocoating. According to the results that have been obtained, the depth of the resonance depends on the length of the waist region...