Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por título

Mostrando ítems 184-203 de 391

    • L-band multiwavelength single-longitudinal mode fiber laser for sensing applications 

      Pérez Herrera, Rosa Ana Upna Orcid; Ullán Nieto, Ángel; Leandro González, Daniel Upna Orcid; Fernández Vallejo, Montserrat Upna; Quintela, M. A.; Loayssa Lara, Alayn Upna Orcid; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (IEEE / OSA, 2012)   Artículo / Artikulua  OpenAccess
      In this work, a novel single-longitudinal-mode (SLM) four-wavelength laser configuration for sensing applications in the L-band is proposed and experimentally demonstrated. The sensor system presented here is based on ring ...

    • Label-free wavelength and phase detection based SMS fiber immunosensors optimized with cladding etching 

      Cardona-Maya, Yamile; Socorro Leránoz, Abián Bentor Upna Orcid; Del Villar, Ignacio Upna Orcid; Cruz, José Luis; Corres Sanz, Jesús María Upna Orcid; Botero-Cadavid, Juan F. (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      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 ...

    • Láseres de fibra óptica 

      Pérez Herrera, Rosa Ana Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (Versys, 2011)   Artículo / Artikulua  OpenAccess
      Desde su desarrollo en los años 60 hasta nuestros días, los láseres de fibra óptica han ido incrementando su importancia en diversos ámbitos de nuestra vida. Ya sea en la medicina, la electrónica de consumo o la industria, ...

    • Least upper bounds of the powers extracted and scattered by bi-anisotropic particles 

      Liberal Olleta, Íñigo Upna Orcid; Ra'di, Younes; Gonzalo García, Ramón Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Tretyakov, Sergei A.; Ziolkowski, Richard W. (IEEE, 2014)   Artículo / Artikulua  OpenAccess
      The least upper bounds of the powers extracted and scattered by bi-anisotropic particles are investigated analytically. A rigorous derivation for particles having invertible polarizability tensors is presented, and the ...

    • Left-handed extraordinary optical transmission through a photonic crystal of subwavelength hole arrays 

      Beruete Díaz, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Campillo, Igor (Optical Society of America, 2006)   Artículo / Artikulua  OpenAccess
      Metamaterial structures are artificial materials that show unconventional electromagnetic properties such as photonic band-gap, extraordinary optical transmission and left-handed propagation. Up to now, relations of photonic ...

    • Lensing system and Fourier transformation using epsilon-near-zero metamaterials 

      Navarro Cía, Miguel Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Engheta, Nader (American Physical Society, 2012)   Artículo / Artikulua  OpenAccess
      Metamaterials and metastructures with effective relative permittivity near zero exhibit unusual wave properties such as uniform phase distributions across such domains. Here we discuss the possibility of using ε-near-zero ...

    • Localized photonic jets from flat, three-dimensional dielectric cuboids in reflection mode 

      Minin, Igor V.; Minin, Oleg V.; Pacheco-Peña, Víctor Upna Orcid; Beruete Díaz, Miguel Upna Orcid (Optical Society of America, 2015)   Artículo / Artikulua  OpenAccess
      A photonic jet (a terajet at terahertz frequencies) commonly denotes a specific, spatially localized region in the near field on the front side of a dielectric particle with a diameter comparable with the wavelength ...

    • Long period fiber grating for biosensing: an improved design methodology to enhance add-layer sensitivity 

      Bandyopadhyay, Sankhyabrata; Del Villar, Ignacio Upna Orcid; Basumallick, Nandini; Biswas, Palas; Dey, Tanoy Kumar; Bandyopadhyay, Somnath (IEEE, 2018)   Artículo / Artikulua  OpenAccess
      We present our theoretical study on the design of LPFG sensor where its add-layer sensitivity is enhanced. addlayer sensitivity quantifies the sensitivity of the sensor to the changes taking place within few tens of ...

    • Long period fiber gratings with overlay of variable refractive index 

      Del Villar, Ignacio Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (IEEE, 2005)   Artículo / Artikulua  OpenAccess
      A theoretical analysis is presented of a long-period fiber grating (LPFG) with an overlay of variable refractive index. The highest sensitivity of the resonance wavelengths to variations in the refractive index of the ...

    • Long-range hybrid network with point and distributed Brillouin sensors using Raman amplification 

      Zornoza Indart, Ander; Pérez Herrera, Rosa Ana Upna Orcid; Elosúa Aguado, César Upna Orcid; Díaz Lucas, Silvia Upna Orcid; Bariáin Aisa, Cándido Upna Orcid; Loayssa Lara, Alayn Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (Optical Society of America, 2010)   Artículo / Artikulua  OpenAccess
      We propose a novel concept for hybrid networks that combine point and distributed Brillouin sensors in a cost-effective architecture that also deploys remote distributed Raman amplification to extend the sensing range. A ...

    • Lossy mode resonance generation with indium tin oxide coated optical fibers for sensing applications 

      Del Villar, Ignacio Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Hernáez Sáenz de Zaitigui, Miguel Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2010)   Artículo / Artikulua  OpenAccess
      Surface plasmon resonances and lossy mode resonances can be generated with Indium Tin Oxide (ITO) coated optical fibers. Both phenomena are analyzed and compared. Lossy mode resonances present important advantages: ...

    • Low complexity energy management strategy for grid profile smoothing of a residential grid-connected microgrid using generation and demand forecasting 

      Arcos Avilés, Diego; Pascual Miqueleiz, Julio María Upna Orcid; Guinjoan Gispert, Francesc; Marroyo Palomo, Luis Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      This paper presents the design of an energy management strategy based on a low complexity Fuzzy Logic Control (FLC) for grid power profile smoothing of a residential grid-connected microgrid including Renewable Energy ...

    • Low noise dual-wavelength erbium fiber laser in single-longitudinal-mode operation 

      Rota Rodrigo, Sergio Upna; Pérez Herrera, Rosa Ana Upna Orcid; Fernández Vallejo, Montserrat Upna; López-Amo Sáinz, Manuel Upna Orcid (Springer, 2012)   Artículo / Artikulua  OpenAccess
      A new stable dual-wavelength fiber-ring laser based on erbium-doped fiber amplification is reported. The laser is based on ring resonators and employs fiber Bragg gratings to select the operation wavelengths. The ...

    • Low-power class-AB CMOS voltage feedback current operational amplifier with tunable gain and bandwidth 

      Esparza Alfaro, Fermín Upna; Pennisi, Salvatore; Palumbo, Gaetano; López Martín, Antonio Upna Orcid (IEEE, 2014)   Artículo / Artikulua  OpenAccess
      A CMOS class AB variable gain Voltage Feedback Current Operational Amplifier (VFCOA) is presented. The implementation is based on class AB second generation current conveyors and exploits an electronically tunable ...

    • Luminescence-based optical sensors fabricated by means of the layer-by-layer nano-assembly technique 

      Acha Morrás, Nerea de Upna Orcid; Elosúa Aguado, César Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      Luminescence-based sensing applications range from agriculture to biology, including medicine and environmental care, which indicates the importance of this technique as a detection tool. Luminescent optical sensors are ...

    • Magnetic dipole super-resonances and their impact on mechanical forces at optical frequencies 

      Liberal Olleta, Íñigo Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Gonzalo García, Ramón Upna Orcid; Ziolkowski, Richard W. (Optical Society of America, 2014)   Artículo / Artikulua  OpenAccess
      Artificial magnetism enables various transformative optical phenomena, including negative refraction, Fano resonances, and unconventional nanoantennas, beamshapers, polarization transformers and perfect absorbers, and ...

    • Manipulating thermal emission with spatially static fluctuating fields in arbitrarily shaped epsilon-near-zero bodies 

      Liberal Olleta, Íñigo Upna Orcid; Engheta, Nader (National Academy of Sciences, 2018)   Artículo / Artikulua  OpenAccess
      The control and manipulation of thermal fields is a key scientific andtechnological challenge, usually addressed with nanophotonic struc-tures with a carefully designed geometry. Here, we theoreticallyinvestigate a different ...

    • Mapping smooth profile H-plane rectangular waveguide structures to substrate integrated waveguide technology 

      Díaz Caballero, E.; Urrea Micó, Verónica Upna; Chudzik, Magdalena Upna; Arregui Padilla, Iván Upna Orcid; Arnedo Gil, Israel Upna Orcid (Institution of Engineering and Technology, 2014)   Artículo / Artikulua  OpenAccess
      The guidelines for mapping rectangular waveguide structures to substrate integrated waveguide (SIW) technology are well understood for structures with straight walls. However, the mapping of a smooth profile structure from ...

    • Measurement of polarization dependent loss, polarization mode dispersion and group delay of optical components using swept optical single sideband modulated signals 

      Sagüés García, Mikel Upna Orcid; Pérez Echegoyen, Miguel; Loayssa Lara, Alayn Upna Orcid (Optical Society of America, 2008)   Artículo / Artikulua  OpenAccess
      We introduce a novel method for high wavelength-resolution measurement of polarization-averaged group delay, polarization dependent loss and polarization mode dispersion of optical components using swept optical single ...

    • Mechanical 144GHz beam steering with all-metallic epsilon-near-zero lens antenna 

      Pacheco-Peña, Víctor Upna Orcid; Torres Landívar, Víctor Upna; Orazbayev, Bakhtiyar Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Navarro Cía, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Engheta, Nader (AIP Publishing, 2014)   Artículo / Artikulua  OpenAccess
      An all-metallic steerable beam antenna composed of an ε-near-zero (ENZ) metamaterial lens is experimentally demonstrated at 144 GHz (λ0 = 2.083 mm). The ENZ lens is realized by an array of narrow hollow rectangular waveguides ...
      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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