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Elastic properties of soft tissue-mimicking phantoms assessed by combined use of laser ultrasonics and low coherence interferometry

This paper present the first report of an approach that utilises a low coherence interferometer to detect the laser-induced surface acoustic waves (SAW) from the tissue-mimicking phantoms for a rapid characterisation of its elastic properties, it proves the concept of this method which can quantitatively correlate laser generated SAW phase velocity dispersion and mechanical properties of soft materials. This approach has opened up a way for a non-invasive, non-contact method in detection of soft tissue properties with high resolution. This idea was developed in Dundee and experimentally verified in collaboration with the University of Washington.