# 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: 62.5 1000
    coefficients: 0 6.20 2 46.083 2 -4395.9 0 46.083 2
  - type: tabulated k
    data: |
        62.500 7.96E-02
        62.893 7.38E-02
        63.291 7.02E-02
        63.694 6.67E-02
        64.103 6.39E-02
        64.516 6.22E-02
        64.935 6.20E-02
        65.359 6.32E-02
        65.789 6.44E-02
        66.225 6.50E-02
        66.667 6.47E-02
        67.114 5.50E-02
        67.568 5.07E-02
        68.027 4.80E-02
        68.493 4.61E-02
        68.966 4.55E-02
        69.444 4.52E-02
        69.930 4.49E-02
        70.423 4.46E-02
        70.922 4.40E-02
        71.429 4.31E-02
        71.942 4.20E-02
        72.464 4.06E-02
        72.993 3.90E-02
        73.529 3.78E-02
        74.074 3.69E-02
        74.627 3.60E-02
        75.188 3.52E-02
        75.758 3.45E-02
        76.336 3.39E-02
        76.923 3.34E-02
        77.519 3.30E-02
        78.125 3.27E-02
        78.740 3.23E-02
        79.365 3.20E-02
        80.000 3.18E-02
        80.645 3.15E-02
        81.301 3.13E-02
        81.967 3.11E-02
        82.645 3.09E-02
        83.333 3.07E-02
        84.034 3.05E-02
        84.746 3.03E-02
        85.470 3.02E-02
        86.207 3.00E-02
        86.957 2.98E-02
        87.719 2.96E-02
        88.496 2.95E-02
        89.286 2.93E-02
        90.090 2.92E-02
        90.909 2.91E-02
        91.743 2.90E-02
        92.593 2.89E-02
        93.458 2.88E-02
        94.340 2.88E-02
        95.238 2.88E-02
        96.154 2.88E-02
        97.087 2.88E-02
        98.039 2.89E-02
        99.010 2.89E-02
        100.00 2.90E-02
        101.01 2.90E-02
        102.04 2.91E-02
        103.09 2.92E-02
        104.17 2.93E-02
        105.26 2.94E-02
        106.38 2.96E-02
        107.53 2.97E-02
        108.70 2.99E-02
        109.89 3.00E-02
        111.11 3.02E-02
        112.36 3.04E-02
        113.64 3.06E-02
        114.94 3.08E-02
        116.28 3.10E-02
        117.65 3.12E-02
        119.05 3.14E-02
        120.48 3.15E-02
        121.95 3.17E-02
        123.46 3.18E-02
        125.00 3.19E-02
        126.58 3.20E-02
        128.21 3.21E-02
        129.87 3.22E-02
        131.58 3.23E-02
        133.33 3.24E-02
        135.14 3.25E-02
        136.99 3.26E-02
        138.89 3.27E-02
        140.85 3.28E-02
        142.86 3.28E-02
        144.93 3.28E-02
        147.06 3.28E-02
        149.25 3.27E-02
        151.52 3.27E-02
        153.85 3.26E-02
        156.25 3.25E-02
        158.73 3.23E-02
        161.29 3.22E-02
        163.93 3.19E-02
        166.67 3.15E-02
        169.49 3.10E-02
        172.41 3.05E-02
        175.44 2.99E-02
        178.57 2.92E-02
        181.82 2.85E-02
        185.19 2.79E-02
        188.68 2.72E-02
        192.31 2.65E-02
        196.08 2.58E-02
        200.00 2.46E-02
        204.08 2.38E-02
        208.33 2.31E-02
        212.77 2.27E-02
        217.39 2.22E-02
        222.22 2.17E-02
        227.27 2.13E-02
        232.56 2.09E-02
        238.10 2.06E-02
        243.90 2.02E-02
        250.00 1.99E-02
        256.41 1.95E-02
        263.16 1.92E-02
        270.27 1.88E-02
        277.78 1.85E-02
        285.71 1.81E-02
        294.12 1.77E-02
        303.03 1.73E-02
        312.50 1.69E-02
        322.58 1.64E-02
        333.33 1.59E-02
        344.83 1.55E-02
        357.14 1.49E-02
        370.37 1.44E-02
        384.62 1.41E-02
        400.00 1.39E-02
        416.67 1.34E-02
        434.78 1.26E-02
        454.55 1.20E-02
        476.19 1.13E-02
        500.00 1.07E-02
        526.32 1.03E-02
        555.56 9.84E-03
        588.24 9.43E-03
        625.00 9.04E-03
        666.67 8.66E-03
        714.29 8.28E-03
        769.23 7.97E-03
        833.33 7.64E-03
        909.09 7.31E-03
        1000.0 7.00E-03