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REFERENCES: |
    H. H. Li.
    Refractive index of ZnS, ZnSe, and ZnTe and its wavelength and temperature derivatives.
    <a href="https://doi.org/10.1063/1.555705"><i>J. Phys. Chem. Ref. Data</i> <b>13</b>, 103-150 (1984)</a><br>
    *Sellmeier formula is derived by critical analysis of experimental data from several sources.
COMMENTS: |
    293 K (20 °C).
DATA:
  - type: formula 4
    wavelength_range: 0.55 30
    coefficients: 9.92 0.42530 0 0.37766 2 8414.13 0 56.5 2