# 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>
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 0.812249368 0.0181753969 0.755251214 0.00247827771 1.15073913 144.030731
  - type: tabulated k
    data: |
        0.290 1.0628E-05
        0.300 5.7485E-06
        0.310 3.3231E-06
        0.320 1.7651E-06
        0.330 9.3665E-07
        0.340 4.8142E-07
        0.350 2.4741E-07
        0.360 1.3491E-07
        0.370 7.4545E-08
        0.380 5.1849E-08
        0.390 4.0610E-08
        0.400 3.1991E-08
        0.420 2.3478E-08
        0.440 2.4596E-08
        0.460 2.2030E-08
        0.480 1.9146E-08
        0.500 1.9944E-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 8.9485E-08
        1.600 5.1032E-08
        1.800 2.6018E-07
        2.000 5.8353E-07
        2.200 1.4217E-06
        2.400 2.3117E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.38e-07 1.59e-08 -2.45e-11 6.4e-07 4.47e-10 0.192
    nd: 1.617200
    Vd: 53.913743
    glass_code: 617539
    density:
      - value: 3660
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.8e-06
      - temperature_range: 293 573
        value: 9e-06
    dPgF: -0.0009