# 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: |
    <a href="https://refractiveindex.info/download/data/2017/nikon_2017-11.agf">NIKON Zemax catalog 2017-11</a> (obtained from <a href="http://www.nikon.com/products/glass/lineup/materials/optical/">http://www.nikon.com</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/nikon_CaF.pdf">NIKON calcium fluoride glass data sheet</a>
COMMENTS: |
    TCE value is available for 0 to 25 degrees Celsius.
DATA:
  - type: formula 2
    wavelength_range: 0.18489 2.32542
    coefficients: 0 0.581797965 0.002477442 0.373232342 0.01032026 0.083677196 0.010323473 2.36293749 738.225998
  - type: tabulated k
    data: |
        0.157 1.8843E-06
        0.184 7.6647E-07
        0.193 7.7163E-07
        0.229 3.6483E-08
        0.248 3.9510E-08
        0.260 4.1422E-08
        0.270 4.3015E-08
        0.280 4.4608E-08
        0.290 4.6201E-08
        0.297 4.7316E-08
        0.313 4.9865E-08
        0.320 5.0981E-08
        0.334 5.3211E-08
        0.365 5.8150E-08
        0.370 5.8946E-08
        0.370 5.8946E-08
        0.380 6.0539E-08
        0.390 6.2133E-08
        0.400 6.3726E-08
        0.405 6.4522E-08
        0.420 6.6912E-08
        0.436 6.9461E-08
        0.460 7.3285E-08
        0.480 7.6471E-08
        0.500 7.9657E-08
        0.546 8.6986E-08
        0.589 9.3836E-08
        0.632 1.0069E-07
        0.644 1.0260E-07
        0.656 1.0451E-07
        0.706 1.1248E-07
        1.060 1.6887E-07
        1.530 2.4375E-07
        1.970 3.1385E-07
        2.325 3.7041E-07
        2.500 3.9829E-07
CONDITIONS:
    temperature: 295.65
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.16e-05 -2.05e-08 9.02e-13 4.32e-07 2.04e-10 0.115
    nd: 1.433837
    Vd: 95.260792
    density:
      - value: 3180
    thermal_expansion:
      - temperature_range: 243 343
        value: 1.84e-05
    dPgF: 0.0553
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 4.5
        alkali: 2.3
        phosphate: 1.0