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Proceedings Paper

Analysis of Raman spectra of GeAsSe glass using different peak-fitting method
Author(s): Yu-Lin Gan; Li Wang
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Paper Abstract

In order to understand the evolution of chemical structure in glasses, Raman features were fitted into different peakfitting functions, including Gaussian and Lorentzian types. It was found that, while single function was used for peakfitting, Gaussian function showed better fitted curves in overlapping bands than Lorentzian function, and Lorentzian function was more suitable for single broad band. On the other hand, while multiple functions were utilized to fit a vibrational peak, the results showed better matching between fitted curve and raw data. Therefore the Raman spectra were decomposed into different structural units. It was found that the evolution of different structural units was correlated with that of the physical parameters reported in literatures in a series of GeAsSe glasses. Therefore, it was concluded that the proposed method could be employed to decompose broad Raman spectra in amorphous materials so that the chemical structure of the material could be understood better.

Paper Details

Date Published: 6 March 2015
PDF: 7 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94461V (6 March 2015); doi: 10.1117/12.2180846
Show Author Affiliations
Yu-Lin Gan, Beijing Univ. of Technology (China)
Li Wang, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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