APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

23 Jul 2001

Volume 79, Issue 4, pp. 449-553

Return to All Sections
back to top
RSS Feeds

High-frequency ultrasound array element using thermoelastic expansion in an elastomeric film

T. Buma, M. Spisar, and M. O’Donnell

Appl. Phys. Lett. 79, 548 (2001); http://dx.doi.org/10.1063/1.1388027 (3 pages) | Cited 19 times

Full Text: Read Online (HTML) | Download PDF

Show Abstract
The thermoelastic effect was used to produce high-frequency, broadband ultrasound in water. A pulsed diode laser, followed by an erbium-doped fiber amplifier, was focused onto a light-absorbing film deposited on a glass substrate. Conversion efficiency was improved by over 20 dB using an elastomeric film instead of a more commonly used metallic one. Radiation pattern measurements show that considerable energy is radiated at +/−45° for frequencies beyond 50 MHz. These results show that the thermoelastic effect can be used to produce phased arrays for high-frequency ultrasound imaging. © 2001 American Institute of Physics.
Show PACS
43.35.Ud Thermoacoustics, high temperature acoustics, photoacoustic effect
83.80.Va Elastomeric polymers
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close