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Título: | Low-cost and large-size nanoplasmonic sensor based on Fano resonances with fast response and high sensitivity |
Autor: | Baquedano, Estela CSIC ORCID; González Sagardoy, María Ujué CSIC ORCID ; Paniagua-Domínguez, R. CSIC ORCID; Sánchez-Gil, José A. CSIC ORCID ; Postigo, Pablo Aitor CSIC ORCID | Fecha de publicación: | 28-jun-2017 | Editor: | Optical Society of America | Citación: | Optics Express 25(14): 15967-15976 (2017) | Resumen: | We have developed a low-cost, fast and sensitive plasmonic sensor with a large-size for easy handling. The sensor is formed by a Au nanobelt grating fabricated by soft lithography with a period of 780 nm and a width of 355 nm in an even and uniform area of ~2 × 2 cm2. The sensor uses the Fano-shaped third order mode localized plasmon resonance of the Au nanobelts, which appears in the visible part of the transmission spectrum. We have found a detection resolution of 1.56 × 10¿5 refractive index units with a temporal resolution of 1 s in a sensing area of 0.75 × 0.75 mm2. The high uniformity and size of the sensor permit the detection using a simple optical system, which provides the device with the potential to be used as an easy to handle, portable and disposable sensor. | Descripción: | 10 pags., 4 figs. -- OCIS codes: (130.6010) Sensors; (240.6680) Surface plasmons; (250.5403) Plasmonics; (350.2770) Gratings. | Versión del editor: | https://doi.org/10.1364/OE.25.015967 | URI: | http://hdl.handle.net/10261/161543 | DOI: | 10.1364/OE.25.015967 | Identificadores: | doi: 10.1364/OE.25.015967 issn: 1094-4087 |
Aparece en las colecciones: | (IMN-CNM) Artículos (CFMAC-IEM) Artículos |
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