# 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 0.964886701 91.193933 0.468480585 0.0205810529 1.23722796 0.00608509423
  - type: tabulated k
    data: |
        0.290 7.4283E-06
        0.300 5.4970E-06
        0.310 3.7352E-06
        0.320 2.4639E-06
        0.330 1.5700E-06
        0.340 9.6503E-07
        0.350 5.8690E-07
        0.360 3.6622E-07
        0.370 2.2319E-07
        0.380 1.4875E-07
        0.390 1.0736E-07
        0.400 8.3855E-08
        0.420 6.4114E-08
        0.440 6.0036E-08
        0.460 5.5324E-08
        0.480 4.9982E-08
        0.500 4.4010E-08
        0.550 4.3988E-08
        0.600 4.7987E-08
        0.650 5.1986E-08
        0.700 5.0361E-08
        0.800 5.1134E-08
        0.850 2.7111E-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 8.6203E-08
        2.000 3.0530E-07
        2.200 1.2141E-06
        2.400 4.5020E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -5.01e-06 2.49e-08 -4.65e-11 5.72e-07 -7.93e-10 0.06
    nd: 1.659500
    Vd: 57.347260
    glass_code: 660574
    density:
      - value: 3940
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.7e-06
      - temperature_range: 293 573
        value: 8.7e-06
    dPgF: -0.0021
    resistance:
        climatic: 4.0