ArticlePhotoacoustics2021
Dynamic acoustic focusing in photoacoustic transmitter.
Article in Photoacoustics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Photoacoustic imaging plus X: a review.Journal of biomedical optics · 2024Review
- Dual-modality fibre optic probe for simultaneous ablation and ultrasound imaging.Communications engineering · 2022Article
- Laser-induced ultrasound transmitters for large-volume ultrasound tomography.Photoacoustics · 2022Article
- Recent Advancements in Ultrasound Transducer: From Material Strategies to Biomedical Applications.BME frontiers · 2022Review
- Lead halide perovskite for efficient optoacoustic conversion and application toward high-resolution ultrasound imaging.Nature communications · 2021Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photoacoustic transmitter represents a promising substitute for conventional piezoelectric counterparts. However, lack of easy and effective method for dynamically manipulating the focused acoustic field is a common and tricky problem faced by current photoacoustic technology. In this paper, a new strategy for constructing focus tunable photoacoustic transmitter is proposed. Different from existed prevailing device architecture, a sandwich like photoacoustic conversion layer is innovatively designed into a suspending elastic membrane with clamped boundary and it can be deformed using integrated pneumatic actuator. Owing to the membrane deflection property, concave spherical contours with variable radius of curvature can be obtained. Considering the shape determined sound emission characteristic, continuous tuning on the axial focusing length of the acoustic field has been successfully demonstrated in the photoacoustic transmitter for the first time. Besides, acoustic signal with significantly improved negative pressure has also been achieved especially at the focus, bringing additional advantage for applications.
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Registered trials
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