# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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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: 0.365 2.325
    coefficients: 0 1.76389273 0.00842148915 0.407585264 0.0304194282 1.27020239 89.5802552
  - type: tabulated k
    data: |
        0.310 9.2008E-06
        0.320 6.3688E-06
        0.330 3.4677E-06
        0.340 2.0486E-06
        0.350 1.2343E-06
        0.360 7.5994E-07
        0.370 4.6814E-07
        0.380 2.9518E-07
        0.390 2.0195E-07
        0.400 1.4323E-07
        0.420 8.8048E-08
        0.440 6.7167E-08
        0.460 4.0489E-08
        0.480 2.6832E-08
        0.500 1.5947E-08
        0.550 1.7542E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
        0.800 1.9127E-08
        0.850 2.0323E-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 3.3473E-08
        1.600 5.1032E-08
        1.800 1.5844E-07
        2.000 5.1762E-07
        2.200 1.6127E-06
        2.400 6.6220E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.27e-06 1.49e-08 -3.26e-11 6.27e-07 5.37e-10 0.2
    nd: 1.802790
    Vd: 46.761307
    glass_code: 803468
    density:
      - value: 4650
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.8e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: -0.0089