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REFERENCES: |
    1) G. H. Sherman et al.
    Proceedings of the Symposium on Sub-millimeter Waves (Polytechnic Press, Brooklyn, 1970)<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
CONDITIONS:
    direction: o
DATA:
  - type: formula 2
    wavelength_range: 8.5 30.3
    coefficients: 3.0164 18.8133 1.1572 7.3729 10000