# 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: 0.365 2.325
    coefficients: 0 1.90958888 0.0102182926 0.266893034 0.0421328894 1.26585975 97.0733228
  - type: tabulated k
    data: |
        0.340 6.8337E-06
        0.350 2.6949E-06
        0.360 1.2341E-06
        0.370 6.5702E-07
        0.380 3.9689E-07
        0.390 2.6215E-07
        0.400 1.9019E-07
        0.420 1.1908E-07
        0.440 8.8648E-08
        0.460 6.6490E-08
        0.480 4.6114E-08
        0.500 3.1959E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-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 2.2304E-08
        1.600 2.5490E-08
        1.800 5.7411E-08
        2.000 4.1928E-07
        2.200 1.1954E-06
        2.400 5.2414E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.18e-06 1.52e-08 1.59e-10 5.99e-07 9.97e-11 0.282
    nd: 1.807570
    Vd: 40.973340
    glass_code: 808410
    density:
      - value: 4550
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.4e-06
      - temperature_range: 293 573
        value: 8.1e-06
    dPgF: -0.006