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Proceedings Paper

A new method for measuring the refractive index of glass
Author(s): Wei Zhang; Xian-yuan Su; Yan-min Yang; Chao Mi
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Paper Abstract

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.

Paper Details

Date Published: 31 December 2013
PDF: 6 pages
Proc. SPIE 9042, 2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 90420Z (31 December 2013); doi: 10.1117/12.2035858
Show Author Affiliations
Wei Zhang, Hebei Univ. (China)
Xian-yuan Su, Hebei Univ. (China)
Yan-min Yang, Hebei Univ. (China)
Chao Mi, Hebei Univ. (China)


Published in SPIE Proceedings Vol. 9042:
2013 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Xiaocong Yuan; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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