Experiment Research of Diffuse Optical Tomography Imaging in Homogeneous Medium

Abstract:

Given the time-domain measurement of picoseconds pulses and frequency-domain measurement of high-frequency modulation have limitations to realize, this paper introduces the experiment research which use square-wave modulation laser source as incident light source of the diffusion optical tomography in homogeneous medium. Based on the finite-element method, the forward model can be established. The analytical solution of the homogeneous medium can obtained from the derivation of the diffusion equation, after that, we build the optical experiment platform, derive the experimental solution from the platform. Finally, the consistent result is obtained by the comparison of the simulation, the analytical solution and the experimental solution. The result clearly demonstrated the accuracy and effectiveness of the proposed method which use square-wave modulation laser source as incident light source to measure the light intensity.

• Periodical: Applied Mechanics and Materials (Volumes 195-196)
• Pages: 561-565
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.195-196.561
• Online since: August 2012
• Authors: Wei Zhang, Bin Fang
• Keywords: Diffusion Equation, Finite Element Method (FEM), Forward Problem, Homogeneous Medium, Square-Wave

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