Low-cost and large-size nanoplasmonic sensor based on Fano resonances with fast response and high sensitivity
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 cm . The sensor uses the Fano-shaped...
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Published in | Optics express Vol. 25; no. 14; pp. 15967 - 15976 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
United States
10.07.2017
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Online Access | Get full text |
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Summary: | 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 cm
. 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
refractive index units with a temporal resolution of 1 s in a sensing area of 0.75 × 0.75 mm
. 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. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1094-4087 1094-4087 |
DOI: | 10.1364/OE.25.015967 |