利用相干后向散射估计生物介质中的光输运参数
Estimation of light transport parameters in biological media using coherent backscattering
摘要：
研究了利用相干后向散射光的角峰形状估计生物介质光输运参数的适用性。牛奶和亚甲蓝掺杂的牛奶被用作组织模型，用He-Ne激光（632.8nm）进行测量。结果表明，虽然该技术准确估计的传输长度，它可以确定吸收系数只有当吸收是中等高（$α> 1 cm^{-1}$）的长传输长度的典型组织。此外，确定的各向异性因子的可能性，通过估计单散射的漫背景的贡献进行检查。
英文摘要：
The suitability of using the angular peak shape of the coherent backscattered light for estimating the light transport parameters of biological media has been investigated. Milk and methylene blue doped milk were used as tissue phantoms for the measurements carried out with a He-Ne laser (632.8nm). Results indicate that while the technique accurately estimates the transport length, it can determine the absorption coefficient only when the absorption is moderately high ($α> 1 cm^{-1}$) for the long transport lengths typical of tissues. Further, the possibility of determining the anisotropy factor by estimating the single scattering contribution to the diffuse background is examined.
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