# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    1) T. M. Bieniewski and S. J. Czyzak.
    Refractive indexes of single hexagonal ZnS and CdS crystals.
    <a href="https://doi.org/10.1364/JOSA.53.000496"><i>J. Opt. Soc. Am.</i> <b>53</b>, 496-497 (1963)</a><br>
    2) M. Sanchez Gomez, J. M. Guerra, and F. Vilches.
    Weighted nonlinear regression analysis of a Sellmeier expansion: comparison of several nonlinear fits of CdS dispersion.
    <a href="https://doi.org/10.1364/AO.24.001147"><i>Appl. Opt.</i> <b>24</b>, 1147-1150 (1985)</a></br>
    * Ref. 2 provides a dispersion formula based on data from ref. 1
COMMENTS: |
    Extraordinary ray (e). 25 °C.
CONDITIONS:
    temperature: 198
    direction: e
DATA:
  - type: formula 4
    wavelength_range: 0.51 1.4
    coefficients: 5.2599 0.20865 0 0.10799 1 0.027527 0 0.23305 1