Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Control of Broadband Optically Generated Ultrasound Pulses Using Binary Amplitude Holograms

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of the Acoustical Society of America

ISSN

0001-4966

e-ISSN

1520-8524

Svazek periodika

139

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1637-1647

Kód UT WoS článku

000374974900017

EID výsledku v databázi Scopus

2-s2.0-84966700820