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Delgado Camón, Arantzazu

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https://academica-e.unavarra.es/handle/2454/48886

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Delgado Camón

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Arantzazu

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Ingeniería Eléctrica, Electrónica y de Comunicación

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811839

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Author: Acha Morrás, Nerea de × Author: Arregui San Martín, Francisco Javier ×

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    PublicationOpen Access
    Straightforward nano patterning on optical fiber for sensors development
    (Optical Society of America, 2020) Acha Morrás, Nerea de; Elia Lorente, Victor; Delgado Camón, Arantzazu; Arregui San Martín, Francisco Javier; Elosúa Aguado, César; Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren; Institute of Smart Cities - ISC; Ingeniería Eléctrica, Electrónica y de Comunicación; Gobierno de Navarra / Nafarroako Gobernua, PI035 BINACS
    A simple method to prepare a nano pattern along the surface of an optical fiber is applied in this Letter to develop a pH sensor. The template is made of a block copolymer that defines specific locations where gold nano particles are adsorbed on forming clusters. The average diameter of the resulting agglomerates is 121 nm, and the mean distance between the centers is 182 nm. The morphology of the gold cluster array produces localized surface plasmon resonance. The absorbance spectrum is affected by pH variations, and the ratio between the absorption at two different wavelengths is used to characterize the response, which is repetitive and reversible. This Letter highlights the potentiality of this type of chemical nano patterning for the development of optical fiber sensors.