| A Polydisperse Sphere Model Describing the Propagation of Light in Biological Tissue |
| |
| 作者姓名： | 王清华 李振华 来建成 贺安之 |
| |
| 作者单位： | Department of Information Physics and Engineering, Nanjing University of Science and Technology, Nanjing 210094 |
| |
| 基金项目： | Supported partially by the Young Scholar Foundation of Nanjing University of Science and Technology under Grant No N JUST200204. |
| |
| 摘 要： | A polydisperse sphere model with the complex refractive index is employed to describe the propagation of light in biological tissue. The scattering coefficient, absorption coefficient and scattering phase function are calculated. At the same time, the inverse problem on retrieving the particles size distribution, imaginary part of the refractive index and number density of scatterers is investigated. The result shows that the retrieval scheme together with the Chahine algorithm is effective in dealing with such an inverse problem. It is also clarified that a group of parameters including the scattering coefficient, absorption coefficient and phase function are associated with another group including the refractive index, particle size distribution and number density of scatterers, which is a problem described in two different ways and the anisotropy factor is not an independent variable, but is determined by the phase function.
|
| 关 键 词： | 球面散射 生物组织 光学 反射 |
| 收稿时间： | 2006-11-30 |
| 修稿时间： | 2006-11-30 |
A Polydisperse Sphere Model Describing the Propagation of Light in Biological Tissue |
| |
| WANG Qing-Hua,LI Zhen-Hua,LAI Jian-Cheng,HE An-Zhi.A Polydisperse Sphere Model Describing the Propagation of Light in Biological Tissue[J].Chinese Physics Letters,2007,24(4):1076-1079. |
| |
| Authors: | WANG Qing-Hua LI Zhen-Hua LAI Jian-Cheng HE An-Zhi |
| |
| Institution: | Department of Information Physics and Engineering, Nanfing University of Science and Technology, Nanjing 210094 |
| |
| Abstract: | A polydisperse sphere model with the complex refractive index is employed to describe the propagation of light in biological tissue. The scattering coefficient, absorption coefficient and scattering phase function are calculated. At the same time, the inverse problem on retrieving the particles size distribution, imaginary part of the refractive index and number density of scatterers is investigated. The result shows that the retrieval scheme together with the Chahine algorithm is effective in dealing with such an inverse problem. It is also clarified that a group of parameters including the scattering coefficient, absorption coefficient and phase function are associated with another group including the refractive index, particle size distribution and number density of scatterers, which is a problem described in two different ways and the anisotropy factor is not an independent variable, but is determined by the phase function. |
| |
| Keywords: | 78 35 +c 78 20 Ci 02 30 Zz |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理快报》浏览原始摘要信息 |
| 点击此处可从《中国物理快报》下载免费的PDF全文 |
