Measurement method of the refractive index of biotissue by total internal reflection

被引：111

作者：

Li, H

Xie, SS

机构：

[1] Department of Physics, Biomedical Optics Laboratory, Laser Institute and Fujian Normal University, Fujian, 350007, Fuzhou

来源：

APPLIED OPTICS | 1996年 / 35卷 / 10期

关键词：

D O I：

10.1364/AO.35.001793

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A simple method based on total internal reflection is presented for measuring the refractive index of biological tissue. A narrow laser beam and a semicylindrical lens in contact with a tissue specimen are used in the experimental apparatus. The dependence of the internal reflectivity on the angle of incidence is measured to determine the critical angle and therefore the refractive index of tissue. The experimental results for several tissue samples show that the method is reliable and useful for studying tissue optics. The principal advantages of the method are its elimination of scattering effects, suitability to a small in vitro sample, and excellent accuracy. (C) 1996 Optical Society of America

引用

页码：1793 / 1795

页数：3