# 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: |
    D. R. Bosomworth.
    Far-infrared optical properties of CaF<sub>2</sub>, SrF<sub>2</sub>, BaF<sub>2</sub>, and CdF<sub>2</sub>.
    <a href="https://doi.org/10.1103/PhysRev.157.709"><i>Phys. Rev.</i>, <b>157</b>, 709 (1967)</a>
COMMENTS: |
    300 K
CONDITIONS:
    temperature: 300
DATA:
  - type: formula 4
    wavelength_range: 77 1000
    coefficients: 0 6.94 2 54.348 2 -6350.4 0 54.348 2
  - type: tabulated k
    data: |
        76.923 9.82E-02
        77.519 9.18E-02
        78.125 8.74E-02
        78.740 8.34E-02
        79.365 8.01E-02
        80.000 7.68E-02
        80.645 7.37E-02
        81.301 7.10E-02
        81.967 6.82E-02
        82.645 6.57E-02
        83.333 6.34E-02
        84.034 6.15E-02
        84.746 5.97E-02
        85.470 5.80E-02
        86.207 5.66E-02
        86.957 5.53E-02
        87.719 5.40E-02
        88.496 5.28E-02
        89.286 5.18E-02
        90.090 5.09E-02
        90.909 5.01E-02
        91.743 4.94E-02
        92.593 4.87E-02
        93.458 4.80E-02
        94.340 4.74E-02
        95.238 4.69E-02
        96.154 4.64E-02
        97.087 4.59E-02
        98.039 4.54E-02
        99.010 4.50E-02
        100.00 4.45E-02
        101.01 4.41E-02
        102.04 4.37E-02
        103.09 4.34E-02
        104.17 4.30E-02
        105.26 4.27E-02
        106.38 4.23E-02
        107.53 4.20E-02
        108.70 4.17E-02
        109.89 4.14E-02
        111.11 4.11E-02
        112.36 4.09E-02
        113.64 4.07E-02
        114.94 4.04E-02
        116.28 4.01E-02
        117.65 3.99E-02
        119.05 3.96E-02
        120.48 3.93E-02
        121.95 3.90E-02
        123.46 3.88E-02
        125.00 3.87E-02
        126.58 3.85E-02
        128.21 3.83E-02
        129.87 3.81E-02
        131.58 3.78E-02
        133.33 3.75E-02
        135.14 3.72E-02
        136.99 3.69E-02
        138.89 3.66E-02
        140.85 3.62E-02
        142.86 3.57E-02
        144.93 3.40E-02
        147.06 3.33E-02
        149.25 3.28E-02
        151.52 3.27E-02
        153.85 3.28E-02
        156.25 3.33E-02
        158.73 3.39E-02
        161.29 3.46E-02
        163.93 3.56E-02
        166.67 3.66E-02
        169.49 3.74E-02
        172.41 3.79E-02
        175.44 3.84E-02
        178.57 3.88E-02
        181.82 3.91E-02
        185.19 3.92E-02
        188.68 3.90E-02
        192.31 3.88E-02
        196.08 3.81E-02
        200.00 3.74E-02
        204.08 3.67E-02
        208.33 3.59E-02
        212.77 3.51E-02
        217.39 3.43E-02
        222.22 3.35E-02
        227.27 3.27E-02
        232.56 3.17E-02
        238.10 3.08E-02
        243.90 2.98E-02
        250.00 2.88E-02
        256.41 2.79E-02
        263.16 2.66E-02
        270.27 2.55E-02
        277.78 2.44E-02
        285.71 2.34E-02
        294.12 2.25E-02
        303.03 2.16E-02
        312.50 2.07E-02
        322.58 1.99E-02
        333.33 1.92E-02
        344.83 1.86E-02
        357.14 1.80E-02
        370.37 1.74E-02
        384.62 1.68E-02
        400.00 1.62E-02
        416.67 1.56E-02
        434.78 1.51E-02
        454.55 1.47E-02
        476.19 1.42E-02
        500.00 1.37E-02
        526.32 1.33E-02
        555.56 1.28E-02
        588.24 1.23E-02
        625.00 1.18E-02
        666.67 1.14E-02
        714.29 1.10E-02
        769.23 1.06E-02
        833.33 1.02E-02
        909.09 9.90E-03
        1000.0 9.56E-03