基于光学相干层析成像技术的强散射介质光学特性测量  

Measurement of Optical Properties of Highly Scattering Media by Optical Coherence Tomography

作　　者：高应俊[1] 金重星[1] 林林[2] 林惠珍[1] 

机构地区：[1]暨南大学光电信息与传感技术广东普通高校重点实验室光电工程系,广州510632 [2]广东医学院生物医学工程教研室,广东东莞523808

出　　处：《光子学报》2011年第1期98-102,共5页Acta Photonica Sinica

摘　　要：利用光学相干层析成像技术对强散射介质的光学特性进行了测量研究.通过理论模拟分析了镜面反射条件下散射系数及各向异性因子对外差效应因子的影响.提出镜面反射情况下利用广义惠更斯菲涅尔模型提取材料光学特性的算法.通过对不同浓度的IntralipidTM溶液的测量,获得了可靠的光学散射特性实验结果,并研究了散射系数与其浓度之间的关系,拟合结果显示散射系数与IntralipidTM溶液浓度近似呈线性关系.The measurement of the optical properties of highly scattering media was carried out based on optical coherence tomography（OCT）.The impact of scattering coefficient and anisotropic factor on heterodyne efficiency factor were analyzed by the theoretical simulation and analog calculation.An algorithm was developed to extract the optical properties using Extended Huygens-Fresnel model under the case of the specular reflection.The reliable optical scattering properties experimental results were obtained by measuring the IntralipidTM solution of the different concentration.And the relationship between scattering coefficient and the correlation of IntralipidTM were studied.The fitting results show that the ralation of scattering coefficient and the concentration of IntralipidTM are approximately linearity.

关 键 词：光学相干层析成像 强散射介质 光学特性 广义惠更斯菲涅尔原理 

分 类 号：TN911.73[电子电信—通信与信息系统]