Study of short-pulse laser propagation in biological tissue by means of the boundary element method |
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Authors: | Mohammad Ali Ansari Reza Massudi |
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Institution: | (1) Laser and Plasma Research Institute, Shahid Beheshti University, G. C. Evin, Tehran, Iran; |
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Abstract: | Propagation of short pulses of light through biological tissues can be studied by numerically solving the diffusion equation.
The boundary integral method was used to convert the differential equation to integral form and the result was solved using
the boundary element method. The effects of different optical parameters of the tissue, i.e. scattering, absorption coefficients
and anisotropic factor, on temporal evolution of the diffusely reflected pulse were studied. The results were compared with
those obtained using the finite difference time domain method and the boundary integral method was found to be more precise
and faster than the last method. The method can be used to investigate reflected pulses in the study of cell morphology and
tumours in different types of tissue. |
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Keywords: | |
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