大学物理 ›› 2020, Vol. 39 ›› Issue (01): 45-47.doi: 10.16854 / j.cnki.1000-0712.190220

• 物理实验 • 上一篇    下一篇

蔗糖溶液折射率与浓度关系的理论和实验探究

许 飞,朱江转,高云静,郑虎林,李中超,朱怡然   

  1. 华东理工大学物理系,上海 200237
  • 收稿日期:2019-05-15 修回日期:2019-07-05 出版日期:2020-01-20 发布日期:2020-03-01
  • 作者简介:孟勇( 1992 -) ,男,安徽合肥人,宁波大学物理科学与技术学院在读硕士,主要从事非线性物理的研究.
  • 基金资助:
    2018 年度本科实验实践教学改革与建设立项(BK0121004)

Theoretical and experimental study of the relation between refractive index and concentration of sucrose solution

XU Fei,ZHU Jiang-zhuan,GAO Yun-jing,ZHENG Hu-lin,LI Zhong-chao,ZHU Yi-ran   

  1. Department of Physics,East China University of Science and Technology,Shanghai200237,China
  • Received:2019-05-15 Revised:2019-07-05 Online:2020-01-20 Published:2020-03-01

摘要: 光在介质中的传播遵循费马原理.在均匀介质中光沿直线传播,非均匀介质中,光的传播轨迹比较复杂.本文以蔗糖溶液为研究对象,设计了光在非均匀介质中传播实验,建立了相关模型,理论分析了溶液折射率随深度(浓度)变化的关系.进行了数据拟合,得出溶液折射率随液体深度变化的表达式.

关键词: 光的折射, 蔗糖溶液, 液体折射率

Abstract:

The propagation of light in the medium follows Fermats principle.In homogeneous medium,lightpropagates along a straight line,and in inhomogeneous medium,the propagation trajectory of light is more complex.In this paper,taking sucrose solution as the research object,the experiment of light propagation in inhomogeneous medium is designed,the related model is established,and the relationship between the refractive index of the solution and the concentration is analyzed theoretically.The gradient expression of refractive index of solution is obtained by fitting the data.

Key words: refraction of light, refractive index gradient, liquid refractive index