期刊
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
卷 139, 期 4, 页码 1637-1647出版社
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.4944758
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资金
- EPSRC
- SoMoPro II Programme
- European Union
- South-Moravian Region
- IT4Innovations excellence in science project [IT4I XS - LQ1602]
- Engineering and Physical Sciences Research Council [EP/L020262/1, EP/M011119/1, 1343332] Funding Source: researchfish
- EPSRC [EP/L020262/1] Funding Source: UKRI
In this work, the use of binary amplitude holography is investigated as a mechanism to focus broadband acoustic pulses generated by high peak-power pulsed lasers. Two algorithms are described for the calculation of the binary holograms; one using ray-tracing, and one using an optimization based on direct binary search. It is shown using numerical simulations that when a binary amplitude hologram is excited by a train of laser pulses at its design frequency, the acoustic field can be focused at a pre-determined distribution of points, including single and multiple focal points, and line and square foci. The numerical results are validated by acoustic field measurements from binary amplitude holograms, excited by a high peak-power laser. (C) 2016 Author(s).
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