Vertical silicon nanowire-based racetrack resonator optical sensor
| Author | Sherif S.M. |
| Author | Elsayed M.Y. |
| Author | Shahada L.A. |
| Author | Swillam M.A. |
| Available date | 2020-04-01T09:45:58Z |
| Publication Date | 2019 |
| Publication Name | Applied Physics A: Materials Science and Processing |
| Resource | Scopus |
| ISSN | 9478396 |
| 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. |
| Sponsor | Open 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. |
| Language | en |
| Publisher | Springer Verlag |
| Subject | A-RINGS Analytes High sensitivity Racetrack resonators Silicon nanowires Small footprints |
| Type | Article |
| Issue Number | 11 |
| Volume Number | 125 |
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