Tracking shear waves in turbid medium by light: theory, simulation, and experiment

Sinan Li; Yi Cheng; Lipei Song; Robert J Eckersley; Daniel S Elson; Meng-Xing Tang

doi:10.1364/OL.39.001597

Tracking shear waves in turbid medium by light: theory, simulation, and experiment

Sinan Li, Yi Cheng, Lipei Song, Robert J Eckersley, Daniel S Elson, Meng-Xing Tang

Biomedical Engineering Department

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Shear wave propagation provides rich information for material mechanical characterization, including elasticity and viscosity. This Letter reports tracking of shear wave propagation in turbid media by laser-speckle-contrast analysis. The theory is described, and a Monte Carlo simulation of light shear wave interaction was developed. Simulation and experiments on tissue-mimicking phantoms agree well and show tracking of shear wave at the phantom surface and at depth as well as multiple shear waves interacting within the object. The relationship between speckle contrast value and shear wave amplitude is also investigated.

Original language	English
Article number	N/A
Pages (from-to)	1597-1600
Number of pages	4
Journal	Optics Letters
Volume	39
Issue number	6
DOIs	https://doi.org/10.1364/OL.39.001597
Publication status	Published - 15 Mar 2014

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abstract = "Shear wave propagation provides rich information for material mechanical characterization, including elasticity and viscosity. This Letter reports tracking of shear wave propagation in turbid media by laser-speckle-contrast analysis. The theory is described, and a Monte Carlo simulation of light shear wave interaction was developed. Simulation and experiments on tissue-mimicking phantoms agree well and show tracking of shear wave at the phantom surface and at depth as well as multiple shear waves interacting within the object. The relationship between speckle contrast value and shear wave amplitude is also investigated.",

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AU - Elson, Daniel S

AU - Tang, Meng-Xing

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AB - Shear wave propagation provides rich information for material mechanical characterization, including elasticity and viscosity. This Letter reports tracking of shear wave propagation in turbid media by laser-speckle-contrast analysis. The theory is described, and a Monte Carlo simulation of light shear wave interaction was developed. Simulation and experiments on tissue-mimicking phantoms agree well and show tracking of shear wave at the phantom surface and at depth as well as multiple shear waves interacting within the object. The relationship between speckle contrast value and shear wave amplitude is also investigated.

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Tracking shear waves in turbid medium by light: theory, simulation, and experiment

Abstract

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