Li, Kezheng, Suliali, Nyasha Joseph, Sahoo, Pankaj et al. (6 more authors) (2024) Noise Tolerant Photonic Bowtie Grating Environmental Sensor. ACS sensors. 1857–1865. ISSN 2379-3694
Abstract
Resonant photonic refractive index sensors have made major advances based on their high sensitivity and contact-less readout capability, which is advantageous in many areas of science and technology. A major issue for the technological implementation of such sensors is their response to external influences, such as vibrations and temperature variations; the more sensitive a sensor, the more susceptible it also becomes to external influences. Here, we introduce a novel bowtie-shaped sensor that is highly responsive to refractive index variations while compensating for temperature changes and mechanical (linear and angular) vibrations. We exemplify its capability by demonstrating the detection of salinity to a precision of 0.1%, corresponding to 2.3 × 10–4 refractive index units in the presence of temperature fluctuations and mechanical vibrations. As a second exemplar, we detected bacteria growth in a pilot industrial environment. Our results demonstrate that it is possible to translate high sensitivity resonant photonic refractive index sensors into real-world environments.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Authors. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 23 Jan 2025 16:40 |
Last Modified: | 08 Feb 2025 00:54 |
Published Version: | https://doi.org/10.1021/acssensors.3c02419 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1021/acssensors.3c02419 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:222278 |
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Description: Noise Tolerant Photonic Bowtie Grating Environmental Sensor
Licence: CC-BY 2.5