%0 Journal Article
%T A Simple Model for Measuring Refractive Index of a Liquid Based upon Fresnel Equations
%A ZHANG Zhi-Wei
%A WU Zhi-Fang
%A WEN Ting-Dun
%A <br>张志伟
%A 武志芳
%A 温廷敦
%J 中国物理快报
%D 2007
%I 
%X Due to many experimental data required and a lot of calculations involved, it is very complex and cumbersome to model prism-based liquid-refractive-index-measuring methods. We develop a new method of mathematical modelling for measuring refractive index of a liquid based upon the Fresnel formula and prism internal reflection at an incident angle less than the critical angle. With this method, only two different concentrations measurements for a kind of solution can lead to the determination of computational model. Measurements are performed to examine the validity of the theoretical model. Experimental results indicate the feasibility of the theoretical model with an error of 1%. The method is also capable of measuring even smaller changes in the optical refractive index of the material on a metal surface by the surface plasma resonance sensing techniques.
%K 42
%K 25
%K Gy
%K 42
%K 25
%K -p
%K 78
%K 20
%K Bh<br>菲涅耳方程
%K 光学
%K 折射
%K 液体
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=F8D92D5BEA6ACFBDE1C8E8D9027D06F3&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=708DD6B15D2464E8&sid=B6A3E865D698AFBC&eid=C6B4999A76117983&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=19