# this file is part of refractiveindex.info database
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REFERENCES: |
    N. P. Barnes and D. J. Gettemy.
    Temperature variation of the refractive indices of yttrium lithium fluoride.
    <a href="https://doi.org/10.1364/JOSA.70.001244"><i>J. Opt. Soc. Am.</i> <b>70</b>, 1244-1247 (1980)</a>
COMMENTS: |
    Room temperature. Extraordinary ray (e).
CONDITIONS:
    direction: e
DATA:
  - type: formula 2
    wavelength_range: 0.225 2.6
    coefficients: 0.31021 0.84903 0.00876 0.53607 134.95660