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AuthorSherif S.M.
AuthorElsayed M.Y.
AuthorShahada L.A.
AuthorSwillam M.A.
Available date2020-04-01T09:45:58Z
Publication Date2019
Publication NameApplied Physics A: Materials Science and Processing
ResourceScopus
ISSN9478396
URIhttp://dx.doi.org/10.1007/s00339-019-2942-9
URIhttp://hdl.handle.net/10576/13731
AbstractWe propose a highly sensitive optical sensor which is built from silicon nanowires. The silicon nanowires are arranged to form a ring resonator. The silicon nanowires cladding and voids are filled with the analyte. The sensor has a small footprint of 16 μm × 16.5 μm. The insertion loss of the sensor is only 0.4 dB, while it is characterized by its high sensitivity of 430 nm/RIU. As a biosensor, our device showed a 100 nm/RIU sensitivity when a thin biolayer of 10 nm thickness is attached to the silicon nanowire structures.
SponsorOpen Access funding provided by the Qatar National Library. This work was made possible by a NPRP award [NPRP7456-1-085] from the Qatar National Research Fund (member of the Qatar Foundation). The statements made herein are solely the responsibility of the authors. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Languageen
PublisherSpringer Verlag
SubjectA-RINGS
Analytes
High sensitivity
Racetrack resonators
Silicon nanowires
Small footprints
TitleVertical silicon nanowire-based racetrack resonator optical sensor
TypeArticle
Issue Number11
Volume Number125
dc.accessType Open Access


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