生物组织的可见光与近红外光散射模型  

A New Model of the Light Scattering in Biological Tissue for Visible and Near Infrared Region

作　　者：李晖[1] 谢树森[1] 陆祖康[2] 林磊[1] 

机构地区：[1]福建师范大学激光研究所生物医学光学实验室,福州350007 [2]浙江大学现代光学仪器国家重点实验室,杭州310027

出　　处：《光学学报》1999年第12期1661-1666,共6页Acta Optica Sinica

基　　金：国家自然科学基金!(69778029);福建省科委国际科技合作计划项目

摘　　要：对生物组织光学模型尤其是光散射特性进行了研究， 发现可以利用等效粒子数密度的粒度分布更精确地了解生物组织的光散射性质。在夫琅和费衍射近似下， 散射系数和散射相函数可以由等效粒子数密度的粒度分布得到。基于粒子粒度光散射测量技术， 所得结果可给出一种新的可行的测量生物组织光学性质参数的方法。The optical model of biological tissue is discussed, in particular its description of optical scattering property. It is found that an equivalent particle size distribution function n(r) can be used to obtain more details and accurate understanding about optical scattering property of tissue. Under the Fraunhofer diffraction approximation, both the scattering coefficient μ s  and the scattering phase function S(θ) are educible from n(r). The scheme provides a new feasible method based on the light scattering techniques for particle size analysis to measure the optical properties of tissue.

关 键 词：生物组织 光学模型 光散射 可见光 近红外光 

分 类 号：Q63[生物学—生物物理学]