Development of optical transmitters for high-amplitude focused ultrasound

Hyoung Won Baac, Adam Maxwell, Jong G. Ok, Kuang Wei Lin, Zhen Xu, L. Jay Guo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper investigates the use of thin-film optical transmitters to generate focused ultrasound, aiming to develop highamplitude focused ultrasound. Composite films were used as the optoacoustic sources, which consist of carbonnanotubes (CNTs) and elastomeric polymers. As the nano-composites work as excellent optical absorbers and efficient heat converters, thermo-elastic volume deformation within the composites produces strong optoacoustic pressure. These films were formed on concave substrates for optoacoustic generation of the focused ultrasound. A focal waveform was measured using a single-mode fiber-optic hydrophone. A peak positive pressure of ∼4 MPa was achieved.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2012
DOIs
StatePublished - 2012
EventPhotons Plus Ultrasound: Imaging and Sensing 2012 - San Francisco, CA, United States
Duration: 22 Jan 201224 Jan 2012

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8223
ISSN (Print)1605-7422

Conference

ConferencePhotons Plus Ultrasound: Imaging and Sensing 2012
Country/TerritoryUnited States
CitySan Francisco, CA
Period22/01/1224/01/12

Keywords

  • Carbon nanotubes
  • Focused ultrasound
  • High-amplitude ultrasound
  • High-frequency ultrasound
  • Optoacoustic generation

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