13 May 1998 Interferometric technique to measure shock-induced surface velocities in tissues for the determination of dynamic mechanical properties
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Proceedings Volume 3254, Laser-Tissue Interaction IX; (1998) https://doi.org/10.1117/12.308153
Event: BiOS '98 International Biomedical Optics Symposium, 1998, San Jose, CA, United States
Abstract
We present an interferometric technique to measure free surface velocities of a tissue phantom when subjected to a high power laser pulse. Such information is useful for the determination of the dynamic mechanical properties of tissues and tissue phantoms. We deliver a 4-nanosecond doubled Nd:YAG laser pulse to a tamped surface of a slab sample and probe the opposite free surface with a HeNe laser beam. The stress-wave induced motion of the rear-surface imparts a Doppler shift to the reflected HeNe probe. We monitor the Doppler shift with a velocity interferometer sensitive to velocities as low as 1 - 2 m/s.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ujwal S. Sathyam, Ujwal S. Sathyam, Peter M. Celliers, Peter M. Celliers, Luiz Barroca Da Silva, Luiz Barroca Da Silva, } "Interferometric technique to measure shock-induced surface velocities in tissues for the determination of dynamic mechanical properties", Proc. SPIE 3254, Laser-Tissue Interaction IX, (13 May 1998); doi: 10.1117/12.308153; https://doi.org/10.1117/12.308153
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