Laser-induced ultrasound transmitters for large-volume ultrasound tomography

D. Thompson; J.R. Nagel; D. B. Gasteau; S. Manohar

doi:10.1016/j.pacs.2021.100312

Laser-induced ultrasound transmitters for large-volume ultrasound tomography

D. Thompson^*, J.R. Nagel, D. B. Gasteau, S. Manohar

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

8 Citations (Scopus)

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Abstract

We present a protocol for the design, fabrication and characterisation of laser-induced ultrasound transmitters with a specific, user-defined frequency response for the purpose of ultrasound tomography of large-volume biomedical samples. Using an analytic solution to the photoacoustic equation and measurements of the optical and acoustic properties of the materials used in the transmitters, we arrive at a required mixture of carbon black and polydimethylsiloxane to achieve the desired frequency response. After an in-depth explanation of the fabrication and characterisation approaches we show the performance of the fabricated transmitter, which has a centre frequency of 0.9 MHz, 200% bandwidth and 45.8^∘ opening angle, multi-kPa pressures over a large depth range in water.

Original language	English
Article number	100312
Journal	Photoacoustics
Volume	25
Early online date	10 Nov 2021
DOIs	https://doi.org/10.1016/j.pacs.2021.100312
Publication status	Published - Mar 2022

Keywords

Environmental applications of photoacoustics/laser ultrasound
Industrial
NDE
New transducers
UT-Hybrid-D

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10.1016/j.pacs.2021.100312Licence: CC BY

ArticleFinal published version, 2.79 MBLicence: CC BY

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title = "Laser-induced ultrasound transmitters for large-volume ultrasound tomography",

abstract = "We present a protocol for the design, fabrication and characterisation of laser-induced ultrasound transmitters with a specific, user-defined frequency response for the purpose of ultrasound tomography of large-volume biomedical samples. Using an analytic solution to the photoacoustic equation and measurements of the optical and acoustic properties of the materials used in the transmitters, we arrive at a required mixture of carbon black and polydimethylsiloxane to achieve the desired frequency response. After an in-depth explanation of the fabrication and characterisation approaches we show the performance of the fabricated transmitter, which has a centre frequency of 0.9 MHz, 200% bandwidth and 45.8∘ opening angle, multi-kPa pressures over a large depth range in water.",

keywords = "Environmental applications of photoacoustics/laser ultrasound, Industrial, NDE, New transducers, UT-Hybrid-D",

author = "D. Thompson and J.R. Nagel and Gasteau, {D. B.} and S. Manohar",

note = "Funding Information: The authors would like to thank Johan van Hespen for his assistance and many useful inputs in the design of the transmitters as well as the illumination system. We are also grateful to Wilma Petersen for her assistance in the preparation of the CB/PDMS mixtures. This work was funded as a part of the European Horizon 2020 PAMMOTH project under Grant Agreement No. 732411 , an initiative of the Photonics Public–Private Partnership. Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2022",

month = mar,

doi = "10.1016/j.pacs.2021.100312",

language = "English",

volume = "25",

journal = "Photoacoustics",

issn = "2213-5979",

publisher = "Elsevier GmbH",

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AU - Thompson, D.

AU - Nagel, J.R.

AU - Gasteau, D. B.

AU - Manohar, S.

N1 - Funding Information: The authors would like to thank Johan van Hespen for his assistance and many useful inputs in the design of the transmitters as well as the illumination system. We are also grateful to Wilma Petersen for her assistance in the preparation of the CB/PDMS mixtures. This work was funded as a part of the European Horizon 2020 PAMMOTH project under Grant Agreement No. 732411 , an initiative of the Photonics Public–Private Partnership. Publisher Copyright: © 2021 The Authors

PY - 2022/3

Y1 - 2022/3

N2 - We present a protocol for the design, fabrication and characterisation of laser-induced ultrasound transmitters with a specific, user-defined frequency response for the purpose of ultrasound tomography of large-volume biomedical samples. Using an analytic solution to the photoacoustic equation and measurements of the optical and acoustic properties of the materials used in the transmitters, we arrive at a required mixture of carbon black and polydimethylsiloxane to achieve the desired frequency response. After an in-depth explanation of the fabrication and characterisation approaches we show the performance of the fabricated transmitter, which has a centre frequency of 0.9 MHz, 200% bandwidth and 45.8∘ opening angle, multi-kPa pressures over a large depth range in water.

AB - We present a protocol for the design, fabrication and characterisation of laser-induced ultrasound transmitters with a specific, user-defined frequency response for the purpose of ultrasound tomography of large-volume biomedical samples. Using an analytic solution to the photoacoustic equation and measurements of the optical and acoustic properties of the materials used in the transmitters, we arrive at a required mixture of carbon black and polydimethylsiloxane to achieve the desired frequency response. After an in-depth explanation of the fabrication and characterisation approaches we show the performance of the fabricated transmitter, which has a centre frequency of 0.9 MHz, 200% bandwidth and 45.8∘ opening angle, multi-kPa pressures over a large depth range in water.

KW - Environmental applications of photoacoustics/laser ultrasound

KW - Industrial

KW - NDE

KW - New transducers

KW - UT-Hybrid-D

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U2 - 10.1016/j.pacs.2021.100312

DO - 10.1016/j.pacs.2021.100312

M3 - Article

AN - SCOPUS:85119487758

SN - 2213-5979

VL - 25

JO - Photoacoustics

JF - Photoacoustics

M1 - 100312

ER -

Laser-induced ultrasound transmitters for large-volume ultrasound tomography

Abstract

Keywords

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Laser-induced ultrasound transmitters for biomedical imaging

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