Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F16%3APU121571" target="_blank" >RIV/00216305:26230/16:PU121571 - isvavai.cz</a>
Result on the web
<a href="http://scitation.aip.org/content/asa/journal/jasa/139/4/10.1121/1.4944758" target="_blank" >http://scitation.aip.org/content/asa/journal/jasa/139/4/10.1121/1.4944758</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1121/1.4944758" target="_blank" >10.1121/1.4944758</a>

Result language
angličtina
Original language name
Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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