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Proceedings Paper

Generating subsurface acoustic waves in indocyanine-green-stained elastin biomaterial using a Q-switched laser
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Paper Abstract

A Q-switched frequency-doubled Nd-YAG laser coupled to an optical parametric oscillator generated 4.75 ns 800 nm laser pulses to create a subsurface acoustic wave in planar indocyanine green gel samples and flat segments of elastin biomaterial stained with indocyanine green. The acoustic waves traveled through the target and were detected by a piezoelectric transducer. The waveforms were converted to measurements of pressure (and temperature) as a function of depth in the material. An algorithm was developed and applied to the acoustic signals to extract information about the absorption coefficient as a function of depth in the samples.

Paper Details

Date Published: 13 May 1998
PDF: 8 pages
Proc. SPIE 3254, Laser-Tissue Interaction IX, (13 May 1998); doi: 10.1117/12.308154
Show Author Affiliations
John A. Viator, Oregon Graduate Institute and Oregon Medical Laser Ctr. (United States)
Steven L. Jacques, Oregon Graduate Institute and Oregon Medical Laser Ctr. (United States)
Scott A. Prahl, Oregon Graduate Institute and Oregon Medical Laser Ctr. (United States)


Published in SPIE Proceedings Vol. 3254:
Laser-Tissue Interaction IX
Steven L. Jacques; Jeff Lotz, Editor(s)

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