Vertical silicon nanowire-based racetrack resonator optical sensor

Author's Department

Physics Department

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http://www.worldcat.org/oclc/1196417150

All Authors

S M Sherif; M Y Elsayed; L A Shahada; M A Swillam

Document Type

Research Article

Publication Title

Applied Physics A

Publication Date

1-1-2019

doi

10.1007/s00339-019-2942-9

Abstract

We 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.

First Page

1

Last Page

6

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