Detail publikace

Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms

BROWN, M. JAROŠ, J. COX, B. TREEBY, B.

Originální název

Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

ultrasound, photoacoustic , spectral methods, k-Wave

Autoři

BROWN, M.; JAROŠ, J.; COX, B.; TREEBY, B.

Vydáno

1. 4. 2016

ISSN

1520-8524

Periodikum

Journal of the Acoustical Society of America

Ročník

139

Číslo

4

Stát

Spojené státy americké

Strany od

1637

Strany do

1647

Strany počet

11

URL

http://scitation.aip.org/content/asa/journal/jasa/139/4/10.1121/1.4944758

BibTex

@article{BUT130915,
  author="Michael {Brown} and Jiří {Jaroš} and Ben {Cox} and Bradley {Treeby}",
  title="Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms",
  journal="Journal of the Acoustical Society of America",
  year="2016",
  volume="139",
  number="4",
  pages="1637--1647",
  doi="10.1121/1.4944758",
  issn="1520-8524",
  url="http://scitation.aip.org/content/asa/journal/jasa/139/4/10.1121/1.4944758"
}