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Proceedings Paper

Reduction of acoustic transients generated in liquid media and in tissue by pulsed 2-um lasers
Author(s): Tomas Sedlacek; Michael A. Martinelli; Leon Esterowitz; Joseph F. Pinto
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Paper 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.

Paper Details

Date Published: 7 August 1992
PDF: 5 pages
Proc. SPIE 1646, Laser-Tissue Interaction III, (7 August 1992); doi: 10.1117/12.137472
Show Author Affiliations
Tomas Sedlacek, Intra-Sonix, Inc. (United States)
Michael A. Martinelli, Intra-Sonix, Inc. (United States)
Leon Esterowitz, Naval Research Lab. (United States)
Joseph F. Pinto, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 1646:
Laser-Tissue Interaction III
Steven L. Jacques, Editor(s)

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