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REFERENCES: |
    K. Kato, F. Tanno, N. Umemura.
    Sellmeier and thermo-optic dispersion formulas for GaSe (Revisited).
    <a href="https://doi.org/10.1364/AO.52.002325"><i>Appl. Opt.</i> <b>52</b>, 2325-2328 (2013)</a>
COMMENTS: |
    20 °C, Extraordinary ray (e)
CONDITIONS:
    temperature: 293
    direction: e
DATA:
  - type: formula 4
    wavelength_range: 0.8 1620
    coefficients: 8.2477 0.2881 0 0.1669 1 4927.5 0 1990.1 1