Now showing items 1-11 of 11

    • Etched and nanocoated single-mode multimode single-mode (SMS) fibers for detection of wind turbine gearbox oil degradation 

      Del Villar, Ignacio Upna; Goñi Carnicero, Jaime Upna; Vicente Gómara, Adrián Upna; Arregui San Martín, Francisco Javier Upna; Matías Maestro, Ignacio Upna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      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 ...
    • Fabrication of long period gratings by periodically removing the coating of cladding-etched single mode optical fiber towards optical fiber sensor development 

      Ascorbe Muruzabal, Joaquín Upna; Corres Sanz, Jesús María Upna; Del Villar, Ignacio Upna; Matías Maestro, Ignacio Upna (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      Here, we present a novel method to fabricate long period gratings using standard single mode optical fibers (SMF). These optical devices were fabricated in a three-step process, which consisted of etching the SMF, then ...
    • Fiber-based early diagnosis of venous thromboembolic disease by label-free D-dimer detection 

      Zubiate Orzanco, Pablo Upna; Urrutia Azcona, Aitor Upna; Ruiz Zamarreño, Carlos Upna; Egea Urra, Josune; Fernández Irigoyen, Joaquín; Giannetti, Ambra; Baldini, Francesco; Díaz Lucas, Silvia Upna; Matías Maestro, Ignacio Upna; Arregui San Martín, Francisco Javier Upna; Santamaría, Enrique; Chiavaioli, Francesco; Del Villar, Ignacio Upna (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      D-dimer is a useful diagnostic biomarker for deep vein thrombosis or pulmonary embolism, collectively referred to as venous thromboembolism (VTE). The ability to detect in real-time the amount of D-dimer with a fast and ...
    • Generation of lossy mode resonances in planar waveguides toward development of humidity sensors 

      Fuentes Lorenzo, Omar Upna; Corres Sanz, Jesús María Upna; Matías Maestro, Ignacio Upna; Del Villar, Ignacio Upna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      Lossy mode resonances (LMRs) are typically obtained with optical fibre. The Kretschmann configuration is an alternative but LMRs are generated with angles approaching grazing incidence. In this work, a new setup is explored, ...
    • Generation of lossy mode resonances with different nanocoatings deposited on coverslips 

      Fuentes Lorenzo, Omar Upna; Goicoechea Fernández, Javier Upna; Corres Sanz, Jesús María Upna; Del Villar, Ignacio Upna; Ozcariz Celaya, Aritz Upna; Matías Maestro, Ignacio Upna (Optical Society of America, 2020)   Artículo / Artikulua  OpenAccess
      The generation of lossy mode resonances (LMRs) with a setup based on lateral incidence of light in coverslips is a simple platform that can be used for sensing. Here the versatility of this platform is proved by studying ...
    • Lossy mode resonance optical sensors based on indium-gallium-zinc oxide thin film 

      Ozcariz Celaya, Aritz Upna; Dominik, Magdalena; Smietana, Mateusz; Ruiz Zamarreño, Carlos Upna; Del Villar, Ignacio Upna; Arregui San Martín, Francisco Javier Upna (Elsevier, 2019)   Artículo / Artikulua
      This work discusses an application of electrically conductive and optically transparent indium-gallium-zinc oxide (IGZO) thin films for fabrication of lossy mode resonance (LMR) based optical fiber refractometers. The films ...
    • Lossy mode resonance sensors based on lateral light incidence in nanocoated planar waveguides 

      Fuentes Lorenzo, Omar Upna; Del Villar, Ignacio Upna; Corres Sanz, Jesús María Upna; Matías Maestro, Ignacio Upna (Nature Research, 2019)   Artículo / Artikulua  OpenAccess
      The deposition of an indium oxide (In2O3) thin film on conventional planar waveguides (a coverslip and a glass slide) allows generating lossy mode resonances (LMR) by lateral incidence of light on the waveguide and by ...
    • Lossy mode resonance sensors based on nanocoated multimode-coreless-multimode fibre 

      Vicente Gómara, Adrián Upna; Santano, Desiree Upna; Zubiate Orzanco, Pablo Upna; Urrutia Azcona, Aitor Upna; Del Villar, Ignacio Upna; Ruiz Zamarreño, Carlos Upna (Elsevier, 2020)   Artículo / Artikulua
      In this work it is proved the ability to obtain lossy mode resonances (LMRs) in the transmission spectrum with multimode-coreless-multimode fibre optic structure coated with tin oxide on the coreless segment. The devices ...
    • Multimode – coreless – multimode fiber-based sensors: theoretical and experimental study 

      San Fabián García, Noé Upna; Socorro Leránoz, Abián Bentor Upna; Del Villar, Ignacio Upna; Díaz Lucas, Silvia Upna; Matías Maestro, Ignacio Upna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      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 ...
    • Telecommunications on Earth and their possible relation with the anthropic principle 

      Del Villar, Ignacio Upna (Nicolaus Copernicus University, 2019)   Artículo / Artikulua  OpenAccess
      The society of the information is based on the ability of humans to communicate in real time. This is possible thanks to the emission of electromagnetic waves. In this work it is discussed, by analyzing the round trip time ...
    • Trends in the design of wavelength-based optical fibre biosensors (2008–2018) 

      Socorro Leránoz, Abián Bentor Upna; Santano, Desiree Upna; Del Villar, Ignacio Upna; Matías Maestro, Ignacio Upna (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      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 ...