Szczegóły publikacji
Opis bibliograficzny
Air-coupled acoustic radiation force for non-contact generation of broadband mechanical waves in soft media / Łukasz AMBROZIŃSKI, Ivan Pelivanov, Shaozhen Song, Soon Joon Yoon, David Li, Liang Gao, Tueng T. Shen, Ruikang K. Wang, Matthew O'Donnell // Applied Physics Letters ; ISSN 0003-6951. — 2016 — vol. 109 iss. 4 art. no. 043701, s. 043701-1–043701-5. — Bibliogr. s. 043701-4–043701-5, Abstr. — Publikacja dostępna online od: 2016-07-25. — Ł. Ambroziński dod. afiliacja: Department of Bioengineering, University of Washington
Autorzy (9)
- AGHAmbroziński Łukasz
- Pelivanov Ivan
- Song Shaozhen
- Yoon Soon Joon
- Li David
- Gao Liang
- Shen Tueng T.
- Wang Ruikang K.
- O'Donnell Matthew
Dane bibliometryczne
| ID BaDAP | 102952 |
|---|---|
| Data dodania do BaDAP | 2016-12-16 |
| Tekst źródłowy | URL |
| DOI | 10.1063/1.4959827 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Applied Physics Letters |
Abstract
A non-contact method for efficient, non-invasive excitation of mechanical waves in soft media is proposed, in which we focus an ultrasound (US) signal through air onto the surface of a medium under study. The US wave reflected from the air/medium interface provides radiation force to the medium surface that launches a transient mechanical wave in the transverse (lateral) direction. The type of mechanical wave is determined by boundary conditions. To prove this concept, a home-made 1MHz piezo-ceramic transducer with a matching layer to air sends a chirped US signal centered at 1MHz to a 1.6mm thick gelatin phantom mimicking soft biological tissue. A phase-sensitive (PhS)-optical coherence tomography system is used to track/image the mechanical wave. The reconstructed transient displacement of the mechanical wave in space and time demonstrates highly efficient generation, thus offering great promise for non-contact, non-invasive characterization of soft media, in general, and for elasticity measurements in delicate soft tissues and organs in bio-medicine, in particular. Published by AIP Publishing.
