# 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: |
    <a href="https://refractiveindex.info/download/data/2013/schott-infrared-chalcogenide-glasses-irg23-october-2013-us.pdf">SCHOTT Infrared Chalcogenide Glasses - IRG 23 Product flyer (Version May 2013)</a>
COMMENTS: |
    20 °C
DATA:
  - type: formula 1
    wavelength_range: 1.0 12
    coefficients: 3.74971 3.07065 0.498392 0.953206 40.7557