# 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: |
    F. Weiting and Y. Yixun.
    Temperature effects on the refractive index of lead telluride and zinc selenide.
    <a href="https://doi.org/10.1016/0020-0891(90)90055-Z"><i>Infrared Phys.</i> <b>30</b>, 371-373, 1990</a><br>
    (fitting experimental data with dispersion formula: refractiveindex.info)
COMMENTS: |
    130 K (-143 °C)
DATA:
  - type: formula 4
    wavelength_range: 5.189 12.51
    coefficients: 1 33.851 2 3.6068 1 0 0 0 1 -0.009763 2