# 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_SiO2.pdf">NIKON synthetic silica glass data sheet</a>
COMMENTS: |
    TCE value is available for 25 to 300 degrees Celsius.
DATA:
  - type: formula 2
    wavelength_range: 0.18489 2.32542
    coefficients: 0 0.640349086 0.004253794 0.374308316 0.012779842 0.089750539 0.014004437 0.908924481 99.3231891
  - type: tabulated k
    data: |
        0.157 1.2660E-05
        0.184 1.4650E-08
        0.193 1.5366E-08
        0.229 1.8232E-08
        0.248 1.9745E-08
        0.260 2.0700E-08
        0.270 2.1497E-08
        0.280 2.2293E-08
        0.290 2.3089E-08
        0.297 2.3646E-08
        0.313 2.4920E-08
        0.320 2.5478E-08
        0.334 2.6592E-08
        0.365 2.9060E-08
        0.370 2.9458E-08
        0.370 2.9458E-08
        0.380 3.0255E-08
        0.390 3.1051E-08
        0.400 3.1847E-08
        0.405 3.2245E-08
        0.420 3.3439E-08
        0.436 3.4713E-08
        0.460 3.6624E-08
        0.480 3.8216E-08
        0.500 3.9809E-08
        0.546 4.3471E-08
        0.589 4.6895E-08
        0.632 5.0318E-08
        0.644 5.1274E-08
        0.656 5.2229E-08
        0.706 5.6210E-08
        1.060 8.4394E-08
        1.530 1.2181E-07
        1.970 1.5685E-07
        2.325 1.8511E-07
        2.500 1.9995E-06
CONDITIONS:
    temperature: 295.65
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.21e-05 3e-08 -1.14e-12 2.52e-07 4.92e-10 0.235
    nd: 1.458564
    Vd: 67.859016
    density:
      - value: 2200
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.3e-07
    dPgF: -0.002
    resistance:
        climatic: 1.0
        stain: 0.0
        acid: 1.0
        alkali: 1.0
        phosphate: 1.0