A new method for measuring the refractive index of glass

摘要：

　　It is well known in optics that the refractive index is an important optical parameter of material.A novel method to measure refractive index of glass has been reported in this paper.This method can be used to measure the refractive index of the special laboratory prepared glass which is small,irregularly shaped by measuring its absorption spectrum.And we have measured the refractive index of the laboratory prepared germanium-lead glass(1)(70GeO2-10Pb-10BaO-10K2O),germanium-lead glass(2)(60GeO2-20Pb-10BaO-10K2O),germanium-lead glass(3)(50GeO2-30Pb-10BaO-10K2O)by measuring the absorption spectra of them with the new method.The experiment results show that the peaks position of the absorption shift forward the long wavelength and the refractive indexes increase with the increasing of Pb in germanium lead glasses.The above obtained refractive indexes are similar with the data which measured by the spectroscopic ellipsometry and the error less than 1%.The error analysis indicates that this method has high degree accuracy.We predict that the new method has a potential application in refractive index measurement for glass.

关键词： refractive index germanium-lead glass Ag nano-particles absorption spectrum accuracy

作者: Wei Zhang Xian-yuan Su Yan-min Yang Chao Mi

作者单位: Animation Base of Hebei University,Hebei University,baoding 071002,China Luminescence and Display Research Institute,College of Physics Science and Technology,Hebei Universi

会议类型: 国际会议

会议名称: 2013 International Conference on Optical Instrument and Technology (OIT’2013)(2013年光学仪器与技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2013-11-17（万方平台首次上网日期，不代表论文的发表时间）