Goicoechea Fernández, Javier

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https://academica-e.unavarra.es/handle/2454/49151

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Goicoechea Fernández

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Javier

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Ingeniería Eléctrica, Electrónica y de Comunicación

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ISC. Institute of Smart Cities

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0000-0001-5891-1446

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88664

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6995

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End date: 2009 × Subject: Electrostatic self assembly method ×

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    PublicationOpen Access
    Sensitivity improvement of a humidity sensor based on silica nanospheres on a long-period fiber grating
    (MDPI, 2009) Viegas, Diana; Goicoechea Fernández, Javier; Santos, José Luís; Araújo, Francisco Moita; Ferreira, Luis Alberto; Arregui San Martín, Francisco Javier; Matías Maestro, Ignacio; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
    This work addresses a new configuration that improves the sensitivity of a humidity sensor based on a long-period fiber grating coated with a SiO(2)-nanospheres film. An intermediate higher refractive index overlay, deposited through Electrostatic Self-Assembly, is placed between the fiber cladding and the humidity sensitive film in order to increase the total effective refractive index of the coating. With this intermediate design, a three-fold improvement in the sensitivity was obtained. Wavelength shifts up to 15 nm against 5 nm were achieved in a humidity range from 20% to 80%.