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Dynamic behaviour of laser nucleated bubbles in a focused ultrasound field

conference contribution
posted on 2023-06-09, 09:32 authored by Lian Wang, Gianluca MemoliGianluca Memoli, Mark Hodnett, Bajram Zeqiri
A reference facility to control the cavitation of single bubbles and bubble clouds, using optical and acoustic fields, has been designed and developed at the National Physical Laboratory, UK. The facility consists of a cuboid acoustic chamber, with optical windows on four sides and four transducers mounted on a truncated tetrahedron cap, a Q-switched laser, and an optical beam splitting system able to form either single or multiple beams. This work presents a characterization of this facility: the acoustic pressure field inside the acoustic chamber was measured with a combination of laser refractometry and hydrophone scans, to determine the locations where cavitation can be studied, while the optical threshold was quantified by observing nucleation as a function of the beam parameters. This work also presents some preliminary acoustic emission data and high-speed observations of bubble dynamics.

History

Publication status

  • Published

Journal

2015 IEEE International Ultrasonics Symposium (IUS)

Publisher

Institute of Electrical and Electronics Engineers

Page range

1-4

Pages

4.0

Event name

2015 IEEE International Ultrasonics Symposium

Event location

Taipei, Taiwan

Event type

conference

Event date

21-24 October 2015

Department affiliated with

  • Informatics Publications

Research groups affiliated with

  • Creative Technology Publications

Notes

Unmapped bibliographic data: VO - [Field not mapped to EPrints] JA - 2015 IEEE International Ultrasonics Symposium (IUS) [Field not mapped to EPrints] JO - 2015 IEEE International Ultrasonics Symposium (IUS) [Field not mapped to EPrints]

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2018-01-02