# this file is part of refractiveindex.info database
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REFERENCES: "1) W. L. Bond, G. D. Boyd and H. L. Carter Jr.. Refractive indices of HgS (Cinnabar) between 0.62 and 11 μ, <a href=\"https://doi.org/10.1063/1.1709079\"><i>J. Appl. Phys.</i>, <b>38</b>, 4090-4091 (1967)</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 Sellmeier equation based on the data from Ref. 1"
COMMENTS: "Ordinary ray"
DATA:
  - type: formula 2
    range: 0.62 11.0
    coefficients: 3.1506 2.7896 0.1328 1.1378 705
