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REFERENCES: |
    1) M. P. Lisitsa, L. F. Gudymenko, V. N. Malinko, S. F. Terekhova.
    Dispersion of the refractive indices and birefringence of CdS<sub>x</sub>Se<sub>1-x</sub> single crystals.
    <a href="https://doi.org/10.1002/pssb.19690310146"><i>Phys. Status Solidi</i>, <b>31</b>, 389-399 (1969)</a><br>
    2) G. C. Bhar.
    Refractive index interpolation in phase-matching.
    <a href="https://doi.org/10.1364/AO.15.0305_1"><i>Appl. Opt.</i> <b>15</b>, 305-307 (1976)</a><br>
    * Ref. 2 provides a dispersion formula based on data from Ref. 1
COMMENTS: |
    Extraordinary ray (e)
CONDITIONS:
    direction: e
DATA:
  - type: formula 2
    wavelength_range: 1.01 22.0
    coefficients: 3.2009 1.8875 0.2171 3.6461 3629