# 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: 0.302 2.325
    coefficients: 0 0.813984879 0.00392398403 0.595734077 0.0164900015 1.00704301 107.665801
  - type: tabulated k
    data: |
        0.300 9.3393E-06
        0.310 4.6151E-06
        0.320 1.9719E-06
        0.330 8.7730E-07
        0.340 4.1753E-07
        0.350 2.0512E-07
        0.360 1.0206E-07
        0.370 5.9484E-08
        0.380 3.9569E-08
        0.390 3.4328E-08
        0.400 2.8778E-08
        0.420 2.3478E-08
        0.440 3.1655E-08
        0.460 2.2030E-08
        0.480 2.6832E-08
        0.500 2.7950E-08
        0.550 2.6340E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 2.7922E-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 2.3645E-07
        1.600 1.1511E-07
        1.800 3.1864E-07
        2.000 6.8289E-07
        2.200 2.4381E-06
        2.400 3.9304E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.02e-06 1.71e-08 -1.32e-11 4.2e-07 2.66e-10 0.209
    nd: 1.563880
    Vd: 60.764747
    glass_code: 564608
    density:
      - value: 3050
    thermal_expansion:
      - temperature_range: 243 343
        value: 6e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0006