# 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/2022/CDGM-ZEMAX202206new.AGF">CDGM Zemax catalog 2022-06</a> (obtained from <a href="http://www.cdgmgd.com/go.htm?k=Download&url=downList">http://www.cdgmgd.com</a>)<br>See also <a href="https://refractiveindex.info/download/data/2022/CDGM202206.pdf">CDGM optical glass data sheets</a>
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 0.618389223 0.00174653825 0.718400306 0.0158112967 1.07451466 126.584788
  - type: tabulated k
    data: |
        0.280 6.9098E-06
        0.290 3.6912E-06
        0.300 1.7622E-06
        0.310 7.9332E-07
        0.320 3.5463E-07
        0.330 1.5691E-07
        0.340 8.2411E-08
        0.350 4.7756E-08
        0.360 3.1687E-08
        0.370 2.3650E-08
        0.380 2.1242E-08
        0.390 2.4928E-08
        0.400 2.2360E-08
        0.420 2.0114E-08
        0.440 2.1072E-08
        0.460 1.0998E-08
        0.480 1.1476E-08
        0.500 1.1955E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
        0.800 1.9127E-08
        0.850 1.3542E-08
        0.900 1.4338E-08
        0.950 1.5135E-08
        1.000 1.5931E-08
        1.060 1.6887E-08
        1.200 1.9118E-08
        1.400 8.9485E-08
        1.600 7.6624E-08
        1.800 3.1864E-07
        2.000 7.3281E-07
        2.200 1.8640E-06
        2.400 2.8361E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.36e-06 2.63e-08 -8.17e-11 4.48e-07 -8.32e-10 0.226
    nd: 1.539960
    Vd: 59.724182
    glass_code: 540597
    density:
      - value: 2840
    thermal_expansion:
      - temperature_range: 243 343
        value: 8e-06
      - temperature_range: 293 573
        value: 9.4e-06
    dPgF: 0.0004