Dynamic acoustic focusing in photoacoustic transmitter
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 s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-03-01
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| Series: | Photoacoustics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221359792030063X |
| _version_ | 1818864243359875072 |
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| author | Qi Li Jiapu Li Haobo Zhu Yujie Chen Benpeng Zhu Hongbin Yu |
| author_facet | Qi Li Jiapu Li Haobo Zhu Yujie Chen Benpeng Zhu Hongbin Yu |
| author_sort | Qi Li |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-19T10:28:33Z |
| format | Article |
| id | doaj.art-8f759d8febb941f696c89370111e8025 |
| institution | Directory Open Access Journal |
| issn | 2213-5979 |
| language | English |
| last_indexed | 2024-12-19T10:28:33Z |
| publishDate | 2021-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Photoacoustics |
| spelling | doaj.art-8f759d8febb941f696c89370111e80252022-12-21T20:25:50ZengElsevierPhotoacoustics2213-59792021-03-0121100224Dynamic acoustic focusing in photoacoustic transmitterQi Li0Jiapu Li1Haobo Zhu2Yujie Chen3Benpeng Zhu4Hongbin Yu5School of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China; Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; Corresponding authors at: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China; Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; Corresponding authors at: School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.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.http://www.sciencedirect.com/science/article/pii/S221359792030063XDynamic acoustic focusingPhotoacoustic transmitterCandle soot nanoparticles (CSNPs)Polydimethylsiloxane (PDMS)Pneumatic actuator |
| spellingShingle | Qi Li Jiapu Li Haobo Zhu Yujie Chen Benpeng Zhu Hongbin Yu Dynamic acoustic focusing in photoacoustic transmitter Photoacoustics Dynamic acoustic focusing Photoacoustic transmitter Candle soot nanoparticles (CSNPs) Polydimethylsiloxane (PDMS) Pneumatic actuator |
| title | Dynamic acoustic focusing in photoacoustic transmitter |
| title_full | Dynamic acoustic focusing in photoacoustic transmitter |
| title_fullStr | Dynamic acoustic focusing in photoacoustic transmitter |
| title_full_unstemmed | Dynamic acoustic focusing in photoacoustic transmitter |
| title_short | Dynamic acoustic focusing in photoacoustic transmitter |
| title_sort | dynamic acoustic focusing in photoacoustic transmitter |
| topic | Dynamic acoustic focusing Photoacoustic transmitter Candle soot nanoparticles (CSNPs) Polydimethylsiloxane (PDMS) Pneumatic actuator |
| url | http://www.sciencedirect.com/science/article/pii/S221359792030063X |
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