# 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:25°C/h
DATA:
  - type: formula 2
    wavelength_range: 0.302 2.325
    coefficients: 0 1.32239317 0.00606224219 0.646347208 0.0234824415 1.17507569 87.8164211
  - type: tabulated k
    data: |
        0.290 8.9154E-06
        0.300 7.3508E-06
        0.310 5.6803E-06
        0.320 3.6769E-06
        0.330 2.4459E-06
        0.340 1.5543E-06
        0.350 9.2658E-07
        0.360 5.5458E-07
        0.370 3.1677E-07
        0.380 1.8711E-07
        0.390 1.2023E-07
        0.400 8.7125E-08
        0.420 5.7307E-08
        0.440 4.5817E-08
        0.460 3.3094E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 2.1939E-08
        0.600 2.3933E-08
        0.650 2.0732E-08
        0.700 2.2326E-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 3.3473E-08
        1.600 5.1032E-08
        1.800 1.7293E-07
        2.000 5.8353E-07
        2.200 1.6704E-06
        2.400 7.3375E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 7.67e-06 2.36e-08 -1.95e-10 6.35e-07 3.67e-10 0.208
    nd: 1.742100
    Vd: 49.246024
    glass_code: 742493
    density:
      - value: 4260
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.009
    resistance:
        climatic: 1.0