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REFERENCES: |
    S. T. Wu, C. Wu, W. Warenghem, M. Ismaili.
    Refractive index dispersions of liquid crystals.
    <a href="https://doi.org/10.1117/12.143988"><i>Opt. Eng.</i> <b>32</b>, 1775-1780 (1993)</a>
COMMENTS: |
    25.0 °C. Extraordinary ray (e).
DATA:
  - type: formula 6
    wavelength_range: 0.4 0.8
    coefficients: 0.4560 1.7501 25.0000 1.1423 18.1077
CONDITIONS:
    temperature: 298
    direction: e