期刊
VIBRATIONAL SPECTROSCOPY
卷 78, 期 -, 页码 23-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.vibspec.2015.03.004
关键词
Dispersion analysis; Uniaxial single crystals; IR reflectance spectra; Determining orientation
资金
- Deutsche Forschungsgemeinschaft [MA 2616/5-1]
We modified the measurement and evaluation scheme developed for the dispersion analysis of triclinic crystals to perform dispersion analysis of arbitrarily cut uniaxial crystals. In addition to the dispersion parameters, we determine the orientation of the optical axis and can distinguish between degenerate and non-degenerate vibrational modes. The investigated crystals comprise quartz, calcite and lithium niobate, which exhibit different levels of difficulty to evaluate the dispersion parameters and the correct orientation. (C) 2015 Elsevier B.V. All rights reserved.
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