Investigation of the refractive indices of LaF<sub>3</sub>, CeF<sub>3</sub>, PrF<sub>3</sub> and NdF<sub>3</sub>
R. Laihoa Wihuri Physical Laboratory , University of Turku , 20500 Turku 50, FinlandM. Lakkistoa Wihuri Physical Laboratory , University of Turku , 20500 Turku 50, Finland
1983en
ABI
Abstract
Abstract Values of the ordinary and extraordinary refractive indices of LaF3, CeF3, PrF3 and NdF3 single crystals were determined in the visible and the near-ultraviolet regions. The dispersion of the indices was analysed by using a single-effectiveoscillator model. The energy of the oscillator agrees well with the first strong peaks in the reflectance spectra of these crystals.
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