Keenlyside, B;
Marques, D;
Redgewell, N;
Cherkashin, M;
Phillips, D;
Zhang, E;
Beard, P;
(2023)
Ultrasonic field mapping through a multimode optical fibre.
In:
Proceedings of SPIE - The International Society for Optical Engineering.
SPIE: Munich, Germany.
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Abstract
Miniaturising ultrasonic field mapping systems could lead to novel endoscopes capable of photoacoustic tomography and other techniques. However, developing high-resolution arrays of sensitive, sub-millimetre scale ultrasound sensors presents a challenge for traditional piezoelectric transducers. To address this challenge, we conceived an ultrasonic detection concept in which an optical ultrasonic sensor array is read out using a laser beam scanned through a 0.24 mm diameter multimode optical fibre using optical wavefront shaping. We demonstrate this system enables ultrasonic field mapping with >2500 measurement points, paving the way to developing miniaturised photoacoustic endoscopes and other ultrasonic systems based on the presented concept.
| Type: | Proceedings paper |
|---|---|
| Title: | Ultrasonic field mapping through a multimode optical fibre |
| Event: | European Conferences on Biomedical Optics 2023 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2675616 |
| Publisher version: | https://doi.org/10.1117/12.2675616 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Ultrasound, Wavefront shaping, Endoscope, Multimode Fibre |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science 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/10179363 |
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