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Propagation of Cylindrical Vector Laser Beams in Turbid Tissue-Like Scattering Media

机译:圆柱矢量激光束在浑浊的组织散射介质中的传播

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We explore the propagation of the cylindrical vector beams (CVB) in turbid tissue-like scattering medium in comparison with the conventional Gaussian laser beam. The study of propagation of CVB and Gaussian laser beams in the medium is performed utilizing the unified electric field Monte Carlo model. The implemented Monte Carlo model is a part of a generalized on-line computational tool and utilizes parallel computing, executed on the NVIDIA Graphics Processing Units (GPUs) supporting Compute Unified Device Architecture (CUDA). Using extensive computational studies, we demonstrate that after propagation through the turbid tissue-like scattering medium, the degree of fringe contrast for CVB becomes at least twice higher in comparison to the conventional linearly polarized Gaussian beam. The results of simulations agree with the results of experimental studies. Both experimental and theoretical results suggest that there is a high potential of the application of CVB in the diagnosis of biological tissues.
机译:与传统的高斯激光束相比,我们探索了圆柱形矢量束(CVB)在浑浊的组织样散射介质中的传播。利用统一的电场蒙特卡洛模型对CVB和高斯激光束在介质中的传播进行了研究。实施的蒙特卡洛模型是通用在线计算工具的一部分,并利用并行计算在支持计算统一设备体系结构(CUDA)的NVIDIA图形处理单元(GPU)上执行。通过广泛的计算研究,我们证明了在通过浑浊的组织样散射介质传播之后,CVB的条纹对比度至少比传统的线性偏振高斯光束高两倍。模拟结果与实验研究结果一致。实验和理论结果均表明CVB在生物组织诊断中的应用潜力很大。

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