# 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>
COMMENTS: |
    anneal rate:25°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 0.636443631 0.0021737174 0.856921557 0.0144861653 1.23247717 107.585666
  - type: tabulated k
    data: |
        0.300 7.1518E-06
        0.310 4.3712E-06
        0.320 2.6016E-06
        0.330 1.4762E-06
        0.340 7.7836E-07
        0.350 4.1684E-07
        0.360 2.2334E-07
        0.370 1.2019E-07
        0.380 7.0363E-08
        0.390 4.6905E-08
        0.400 3.5208E-08
        0.420 2.6846E-08
        0.440 2.4596E-08
        0.460 1.8349E-08
        0.480 1.5310E-08
        0.500 1.5947E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 1.2745E-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 5.5844E-08
        1.600 5.1032E-08
        1.800 2.1649E-07
        2.000 6.1658E-07
        2.200 2.4381E-06
        2.400 6.2740E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.09e-06 1.33e-08 5.99e-11 4.94e-07 2.85e-10 0.176
    nd: 1.590900
    Vd: 60.618517
    glass_code: 591606
    density:
      - value: 2840
    thermal_expansion:
      - temperature_range: 293 573
        value: 9.2e-06
    dPgF: -0.0046