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Bowl-shaped ZnO ultrasonic transducer for ...
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Document type :
Communication dans un congrès avec actes
DOI :
10.1109/IUS52206.2021.9593419
Title :
Bowl-shaped ZnO ultrasonic transducer for photoacoustic/ultrasonic multimode microscopy
Author(s) :
Zhang, J. []
Zhao, D. [Auteur]
Li, D. [Auteur]
Tian, F. [Auteur]
Xu, Wei-Jiang []
Wu, X. [Auteur]
Conference title :
2021 IEEE International Ultrasonics Symposium (IUS)
City :
Xi'an
Country :
Chine
Start date of the conference :
2021-09-11
Book title :
: 2021 IEEE International Ultrasonics Symposium (IUS)
Publisher :
IEEE
Publication date :
2021
English keyword(s) :
Dual-modality imaging
Self-focusing
ZnO
Bowl-shaped ultrasonic transducer
HAL domain(s) :
Sciences de l'ingénieur [physics]
English abstract : [en]
A bowl-shaped ultrasonic transducer is proposed for photoacoustic/ultrasonic multimode microscopy. The transducer uses zinc oxide (ZnO) as the piezoelectric material, which has a better electromechanical coefficient than ...
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A bowl-shaped ultrasonic transducer is proposed for photoacoustic/ultrasonic multimode microscopy. The transducer uses zinc oxide (ZnO) as the piezoelectric material, which has a better electromechanical coefficient than flexible PVDF polymer and ensures the detection sensitivity. The ZnO film is spherically curved realizing self-focusing. It does not require an acoustic lens, consequently avoiding echo interference by the lens. In addition, it can be integrated with optical fibers. The resonant modes of the bowl-shaped ZnO film were calculated using finite element method. A photoacoustic/ultrasonic dual-modality imaging system is under development to adapt to the designed photoacoustic transducer. First test and imaging are carried out using a commercial ultrasonic transducer.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Collections :
  • Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520
Source :
Harvested from HAL
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  • https://hal.archives-ouvertes.fr/hal-03541939/document
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