High-resolution silicon photonics focused ultrasound transducer with a sub-millimeter aperture
We present an all-optical focused ultrasound transducer with a sub-millimeter aperture and demonstrate its capability for high-resolution imaging of tissue ex vivo. The transducer is composed of a wideband silicon photonics ultrasound detector and a miniature acoustic lens coated with a thin optically absorbing metallic layer used to produce laser-generated ultrasound. The demonstrated device achieves axial resolution and lateral resolutions of 12 μm and 60 μm, respectively, well below typical values achieved by conventional piezoelectric intravascular ultrasound. The size and resolution of the developed transducer may enable its use for intravascular imaging of thin fibrous cap atheroma.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:48 |
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| Enthalten in: |
Optics letters - 48(2023), 10 vom: 15. Mai, Seite 2668-2671 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Nagli, Michael [VerfasserIn] |
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| Links: |
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| Themen: |
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| Anmerkungen: |
Date Completed 16.05.2023 Date Revised 15.05.2023 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1364/OL.486567 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM356894134 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a We present an all-optical focused ultrasound transducer with a sub-millimeter aperture and demonstrate its capability for high-resolution imaging of tissue ex vivo. The transducer is composed of a wideband silicon photonics ultrasound detector and a miniature acoustic lens coated with a thin optically absorbing metallic layer used to produce laser-generated ultrasound. The demonstrated device achieves axial resolution and lateral resolutions of 12 μm and 60 μm, respectively, well below typical values achieved by conventional piezoelectric intravascular ultrasound. The size and resolution of the developed transducer may enable its use for intravascular imaging of thin fibrous cap atheroma | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Koch, Jürgen |e verfasserin |4 aut | |
| 700 | 1 | |a Hazan, Yoav |e verfasserin |4 aut | |
| 700 | 1 | |a Levi, Ahiad |e verfasserin |4 aut | |
| 700 | 1 | |a Ternyak, Orna |e verfasserin |4 aut | |
| 700 | 1 | |a Overmeyer, Ludger |e verfasserin |4 aut | |
| 700 | 1 | |a Rosenthal, Amir |e verfasserin |4 aut | |
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