# 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 1.21007394 0.00521679919 1.19495815 83.5557501 0.806533246 0.02008035
  - type: tabulated k
    data: |
        0.280 1.0261E-05
        0.290 7.4283E-06
        0.300 5.7485E-06
        0.310 5.0330E-06
        0.320 3.2416E-06
        0.330 2.2781E-06
        0.340 1.5209E-06
        0.350 9.9342E-07
        0.360 6.3926E-07
        0.370 3.9653E-07
        0.380 2.5543E-07
        0.390 1.7228E-07
        0.400 1.2332E-07
        0.420 7.4350E-08
        0.440 5.6476E-08
        0.460 4.7899E-08
        0.480 3.4533E-08
        0.500 2.7950E-08
        0.550 2.1939E-08
        0.600 2.3933E-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 2.2304E-08
        1.600 2.5490E-08
        1.800 1.4396E-07
        2.000 6.0004E-07
        2.200 1.8835E-06
        2.400 8.2273E-06
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.86e-06 1.36e-08 -2.33e-11 5.16e-07 5.98e-10 0.185
    nd: 1.755000
    Vd: 52.320574
    glass_code: 755523
    density:
      - value: 4390
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0087