Simulating Light Propagation through Biological Media Using Monte-Carlo Method
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866917667585130496 |
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| author | Ghahremani, Maryam |
| author_facet | Ghahremani, Maryam |
| contents | Biological tissues are complex structures composed of many elements which make light-based tissue diagnostics challenging. Over the past decades, Monte Carlo technique has been used as a fundamental and versatile approach toward modeling photon-tissue interactions. This report first describes a MC simulation of steady-state light transport in an absorbing and diffusing multi-layered structure. Further, a parallel processing solution is implemented to reduce execution time and memory requirements. Then, the nonparametric phase function, which is a discretized version of the phase function, has been discussed where the integration of the phase function is a numerical process, instead of an analytical operation. Finally, to simulate more realistic structures of biological systems, simulations are modified to incorporate objects of various shapes (sphere, ellipsoid, or cylinder) with a refractive-index mismatched boundary. The output files mainly contain 2D reflection matrix, 2D transmission matrix, and 3D absorption matrix. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2405_06810 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Simulating Light Propagation through Biological Media Using Monte-Carlo Method Ghahremani, Maryam Optics Biological Physics Biological tissues are complex structures composed of many elements which make light-based tissue diagnostics challenging. Over the past decades, Monte Carlo technique has been used as a fundamental and versatile approach toward modeling photon-tissue interactions. This report first describes a MC simulation of steady-state light transport in an absorbing and diffusing multi-layered structure. Further, a parallel processing solution is implemented to reduce execution time and memory requirements. Then, the nonparametric phase function, which is a discretized version of the phase function, has been discussed where the integration of the phase function is a numerical process, instead of an analytical operation. Finally, to simulate more realistic structures of biological systems, simulations are modified to incorporate objects of various shapes (sphere, ellipsoid, or cylinder) with a refractive-index mismatched boundary. The output files mainly contain 2D reflection matrix, 2D transmission matrix, and 3D absorption matrix. |
| title | Simulating Light Propagation through Biological Media Using Monte-Carlo Method |
| topic | Optics Biological Physics |
| url | https://arxiv.org/abs/2405.06810 |