Shagroun, Fadwa;
Colchester, Richard James;
Alles, Erwin Jozef;
(2024)
A fibre-optic ultrasound sensor of simple fabrication.
JASA Express Letters
, 4
(8)
, Article 082001. 10.1121/10.0028202.
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Abstract
The small size, high sensitivity, and immunity to electromagnetic interference of fibre-optic ultrasound sensors make them highly attractive for applications in biomedical imaging and metrology. Typically, such sensors rely on optically resonant structures, such as Fabry–Perot cavities, that require elaborate fabrication techniques. Here, an alternative fibre-optic ultrasound sensor is presented that comprises a simple deformable and reflective structure that was deposited using simple dip-coating. Interrogation with a laser Doppler vibrometer demonstrated how this sensor achieved a sensitivity, signal-to-noise ratio, and noise-equivalent pressure that outperformed piezoelectric hydrophones, whilst offering a highly miniature form factor, turn-key operation, and simple fabrication.
| Type: | Article |
|---|---|
| Title: | A fibre-optic ultrasound sensor of simple fabrication |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1121/10.0028202 |
| Publisher version: | https://doi.org/10.1121/10.0028202 |
| Language: | English |
| Additional information: | Copyright © 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10195179 |
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