Reduction of acoustic transients generated in liquid media and in tissue by pulsed 2-um lasers
- 7 August 1992
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- p. 302-306
- https://doi.org/10.1117/12.137472
Abstract
We are testing the acoustic response of Ho:Tm:YAG and Tm:YAG laser pulses absorption in water and in tissue using a broadband ultrasound PVDF transducer. A clear acoustic signature of the cavity formation as well as its collapse is obtained. The cavity collapse echo carries higher amplitudes and can be eliminated or reduced in tissue by direct fiber-tissue contact. The laser pulse temporal profile--smooth or spiky--has a rather small acoustic impact. Smoother pulses generate somewhat lower acoustic amplitudes during the cavity formation phase.Keywords
This publication has 0 references indexed in Scilit: