Polarization characteristics of backscattering of turbid media based on Mueller matrix |
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| Institution: | 1. College of Computer Science and Technology, Beijing University of Technology, Beijing 100124, China;2. State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China;1. Department of Mechanical Engineering, POSTECH, Pohang, Republic of Korea;2. Korea Atomic Energy Research Institute, Daejeon, Republic of Korea;3. Division of Mechanical System Engineering, Incheon National University, Incheon, Republic of Korea;1. Department of Physics, Zhejiang University, Hangzhou 310027, China;2. School of Basic, East China Jiaotong University, Nanchang 330013, China;1. Department of Veterans Affairs Medical Center, Center for Imaging of Neurodegenerative Diseases, San Francisco, CA, USA;2. Department of Radiology, Mayo Clinic, Rochester, MN, USA;3. Department of Neurosciences, University of California San Diego School of Medicine, La Jolla, CA, USA;4. Department of Pathology & Laboratory Medicine, Institute on Aging, Center for Neurodegenerative Disease Research, University of Pennsylvania School of Medicine, Philadelphia, PA, USA;5. Department of Radiology and Biomedical Imaging, University of California, CA, USA |
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| Abstract: | Mueller matrix is one approach to characterizing optical polarization of the turbid media. We have simulated the two-dimensional images of Mueller matrix based on single-scattering approximation model and implemented experiments to verify the simulations. By comparing the experimental results to the theoretical simulations, we have obtained some conclusions. When the particle size is smaller than the wavelength, the linearly polarized light propagating through the turbid media of Rayleigh scatterers has better polarization-maintaining ability. Whereas when the particle size is larger than the wavelength, the circularly polarized light propagating through the turbid media of Mie scatterers has better polarization-maintaining ability. Moreover, the radial dependence of the element patterns becomes weak as the transport mean free path decreases. This study can help us understand to the fundamental principle of optical polarization. |
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| Keywords: | Polarization Mueller matrix Backscattering Turbid media |
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