• Labescape and breakout: gamification for photonics students 

      Pérez Herrera, Rosa Ana Upna Orcid; Tainta Ausejo, Santiago Upna Orcid; Elosúa Aguado, César Upna Orcid (IATED, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Nowadays, the idea of using game mechanisms in non-gaming environments has become of great interest in different fields such as education or training. Not only for primary school but also in higher formal education, ...
    • Labyrinth absorber based on metageometries metasurface for fungi detection 

      Jáuregui López, Irati Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Kuznetsov, Sergei A.; Beruete Díaz, Miguel Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a labyrinth metasurface based in the new paradigm of metageometries is designed to operate in the Terahertz (THz) band as a biosensor. First, a numerical study is carried out to study the performance of the ...
    • Láser random de fibra óptica asistido por reflectores de fibra con retrodispersión controlada artificialmente 

      Pérez Herrera, Rosa Ana Upna Orcid; Roldán Varona, Pablo; Galarza Galarza, Marko Upna Orcid; Sañudo-Lasagabaster Ibáñez, Silvia; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (SEDOPTICA, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Este trabajo presenta un láser de fibra tipo random (LFR) en cavidad semi-abierta, mediante amplificación híbrida Raman-Erbio y asistida por reflectores de fibra con retrodispersión controlada artificialmente (RFRCA). ...
    • Láseres de fibra óptica basados en reflectores clásicos, estrechados y microperforados 

      Sánchez-González, Arturo; Pérez Herrera, Rosa Ana Upna Orcid; Roldán Varona, Pablo; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (SEDOPTICA, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En este trabajo se presenta un estudio comparativo entre distintos láseres de fibra óptica altamente dopada con erbio, con cavidades lineales conformadas tanto por reflectores puntuales clásicos como reflectores distribuidos. ...
    • Latest research on long-range Brillouin distributed sensing 

      Loayssa Lara, Alayn Upna Orcid; Urricelqui Polvorinos, Javier Upna Orcid; Iribas Pardo, Haritz Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Mompó Roselló, Juan José Upna (SPIE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We review the latest developments in long-range Brillouin optical time-domain analysis sensors. The factors that impair the performance of these sensors, particularly in terms of their distance range, are discussed together ...
    • Learning CAN bus communication with a remote laboratory 

      Del Villar, Ignacio Upna Orcid; Rodriguez-Gil, Luis; Orduña, Pablo (IEEE, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      CAN bus is a very important communications protocol. Its usage is extended to many applications and it is key to know some fundamentals in an introductory course to industrial communications. A collaborative experience ...
    • Long-range and high-resolution traffic monitoring based on pulse-compression DAS and advanced vehicle tracking algorithm 

      Corera Orzanco, Íñigo Upna Orcid; Piñeiro Ben, Enrique; Navallas Irujo, Javier; Sagüés García, Mikel Upna Orcid; Loayssa Lara, Alayn (Optica Publishing Group, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We demonstrate traffic monitoring over tens of kilometres of road using an enhanced distributed acoustic sensing system based on optical pulse compression and a novel transformed-domain-based processing scheme with enhanced ...
    • Lossy mode resonance enabling ultra-low detection limit for fibre-optic biosensors (INVITED) 

      Chiavaioli, Francesco; Giannetti, Ambra; Tombelli, Sara; Trono, Cosimo; Del Villar, Ignacio Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Zubiate Orzanco, Pablo Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Baldini, Francesco (Springer, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The combination of optical fibre-based biosensors with nanotechnologies is providing the opportunity for the development of in situ, portable, lightweight, versatile and high-sensitivity optical sensing platforms. We report ...
    • Lossy mode resonance sensors based on tungsten oxide thin films 

      Del Villar, Ignacio Upna Orcid; Bohórquez Navarro, Dina Luz Upna Orcid; Caputo, Domanico; Buzzin, Alessio; Chiavaioli, Francesco; Baldini, Francesco; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Tungsten oxide (WO3) thin-films fabricated on glass slides have been proven to generate lossy mode resonances (LMRs) in the visible region. Obtained devices were characterized in transmission by lateral incidence of light ...
    • Lossy mode resonances biosensor for the detection of C-reactive protein 

      Zubiate Orzanco, Pablo Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Sánchez Zábal, Pedro Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Optica Publishing Group, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The fabrication and characterization of optical fiber biosensor based on Lossy Mode Resonances (LMR) to detect C-reactive protein (CRP) are presented. Indium tin oxide (ITO) coatings deposited on side-polished D-shaped ...
    • Low power CMOS chopper preamplifier based on source-degeneration transconductors 

      Cinco Izquierdo, O. J.; Sanz Pascual, M. T.; Cruz Blas, Carlos Aristóteles de la Upna Orcid; Calvo López, B. (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper describes the design of a low-power, low-noise flicker CMOS chopper preamplifier for sensor signal conditioning. The core amplifier and the Gm-C output low pass filter of the proposed fully differential preamplifier ...
    • Low-voltage CMOS bulk-driven buffer with bootstrapping technique for gain enhancement and THD-noise reduction 

      Cruz Blas, Carlos Aristóteles de la Upna Orcid; Carrillo, Juan M. (IEEE, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a bootstrapping technique is applied to a bulk-driven voltage buffer for canceling the gate-source transconductance in order to improve the cell gain, the linearity and reduce the input-referred noise. The ...
    • Measurement of paracetamol concentration using a fiber laser system 

      Soares, Liliana; Pérez Herrera, Rosa Ana Upna Orcid; Novais, Susana; Ferreira, António; Frazão, Orlando; Silva, Susana (IEEE, 2023)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A linear fiber laser system for measurements of paracetamol concentration is experimentally demonstrated. The cavity is based on a fiber loop mirror and an FBG centered at 1567.8 nm. The sensing head corresponds to a ...
    • Medida de torsión en seguidores solares con sensores de fibra óptica 

      Leandro González, Daniel Upna Orcid; Bravo Acha, Mikel Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid; Loayssa Lara, Alayn; Júdez Colorado, Aitor Upna; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid; Jiménez Romero, Sergio; Moriana García, Iñaki (SEDOPTICA, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En este trabajo se ha monitorizado la torsión sufrida por una estructura de seguidores solares empleando sensores de fibra óptica. Estas medidas de campo se han obtenido con una red de sensores formada por 45 redes de ...
    • Metal 3D printed D-Band waveguide to surface wave transition 

      Freer, Suzanna; Martinez, Rafael; Pérez Quintana, Dayan Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Hanham, Stephen M.; Attallah, Moataz M.; Navarro Cía, Miguel Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The coupling efficiency between free space waves and surface waves is low, narrowband, or both. Highly efficient broadband (better than 20% fractional bandwidth) coupling from waveguide modes can be achieved through ...
    • Micro sized interdigital capacitor for humidity detection based on agarose coating 

      Vitoria Pascual, Ignacio Upna Orcid; Armas, Dayron; Coronel Camones, Carlos Manuel; Ozcariz Celaya, Aritz Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A micro sized interdigital capacitor has been proposed for the detection of relative humidity. The photolithography technique enables the fabrication of fingers with a size of 10x500 um. A thin film of agarose functionalizes ...
    • Micro-displacement sensor based on hollow core fiber interferometers 

      Sánchez González, Arturo; Rodríguez Rodríguez, Armando; Dauliat, R.; Jamier, Raphael; Roy, Philippe; Pérez Herrera, Rosa Ana Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (Optica, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      An interferometric sensor based on hollow core fibers for the measurement of micro-displacement has been designed. Its characterization has resulted in a linear response, suggesting its application in pressure sensors.
    • Micro-displacement sensor based on hollow core fiber interferometers 

      Dauliat, R.; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna Orcid; Pérez Herrera, Rosa Ana Upna Orcid; Rodríguez Rodríguez, Armando; Sánchez González, Arturo (Optica, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      An interferometric sensor based on hollow core fibers for the measurement of micro-displacement has been designed. Its characterization has resulted in a linear response, suggesting its application in pressure sensors.
    • Micro-drilled optical fiber for enhanced laser strain sensors 

      Pérez Herrera, Rosa Ana Upna Orcid; Bravo Acha, Mikel Upna Orcid; Roldán Varona, Pablo; Leandro González, Daniel Upna Orcid; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (SPIE, 2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, we present an experimental measurement of temperature and strain sensitivities of a micro-drilled optical fiber (MDOF). The MDOF consisted of a quasi-randomly distributed reflector along a single mode fiber ...
    • Microstructured optical fiber sensor for soil moisture measurements 

      López Aldaba, Aitor Upna; López Torres, Diego Upna Orcid; Campo-Bescós, Miguel Upna Orcid; López Rodríguez, José Javier Upna Orcid; Yerro Lizarazu, David; Elosúa Aguado, César Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel Upna Orcid (Optical Society of America, 2018)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A discrete sensor based on a Sn0₂-FP (Fabry-Pérot) cavity is presented and characterized in real soil conditions. Results are compared, for the first time to our knowledge, with a commercial capacitive sensor and gravimetric ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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