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REFERENCES: |
    1) G. D. Boyd, E. Buehler, F. G Storz, J. H. Wernick.
    Linear and nonlinear optical properties of ternary A<sup>II</sup>B<sup>IV</sup>C<sub>2</sub><sup>V</sup> chalcopyrite semiconductors.
    <a href="https://doi.org/10.1109/JQE.1972.1076982"><i>IEEE J. Quantum Electron.</i>, <b>8</b>, 419-426 (1972)</a><br>
    2) G. C. Bhar.
    Refractive index interpolation in phase-matching.
    <a href="https://doi.org/10.1364/AO.15.0305_1"><i>Appl. Opt.</i> <b>15</b>, 305-307 (1976)</a><br>
    * Ref. 2 provides a dispersion formula based on data from Ref. 1
COMMENTS: |
    Ordinary ray (o)
CONDITIONS:
    direction: o
DATA:
  - type: formula 2
    wavelength_range: 2.4 11.5
    coefficients: 9.1064 2.2988 1.0872 1.6247 1370