# 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:4°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 0.653249512 0.023644288 1.20557745 85.5377962 1.40453781 0.006364015
  - type: tabulated k
    data: |
        0.290 6.1369E-06
        0.300 4.3750E-06
        0.310 3.6255E-06
        0.320 2.2091E-06
        0.330 1.5226E-06
        0.340 1.0040E-06
        0.350 6.5654E-07
        0.360 4.3208E-07
        0.370 2.7445E-07
        0.380 1.8068E-07
        0.390 1.2993E-07
        0.400 1.0024E-07
        0.420 7.0935E-08
        0.440 5.6476E-08
        0.460 4.7899E-08
        0.480 3.8389E-08
        0.500 2.7950E-08
        0.550 1.7542E-08
        0.600 1.9137E-08
        0.650 2.0732E-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 2.2304E-08
        1.600 2.5490E-08
        1.800 1.2950E-07
        2.000 5.5054E-07
        2.200 1.6319E-06
        2.400 7.3656E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.01e-06 1.55e-08 -3.41e-11 5.74e-07 4.46e-10 0.215
    nd: 1.768420
    Vd: 49.282160
    glass_code: 768493
    density:
      - value: 4510
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7.4e-06
    dPgF: -0.0094
    resistance:
        climatic: 1.0