# 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/2017/sumita_2017-02-02.agf">SUMITA Zemax catalog 2017-02-02</a> (obtained from <a href="http://www.sumita-opt.co.jp/en/download/">http://www.sumita-opt.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2016/sumita_2016-02-01.pdf">SUMITA optical glass data book</a>
DATA:
  - type: formula 3
    wavelength_range: 0.36 1.55
    coefficients: 3.8410887 -0.015801048 2 0.055983447 -2 0.0030905124 -4 -0.00016655999 -6 2.7794823e-05 -8
  - type: tabulated k
    data: |
        0.370 1.1238E-05
        0.380 6.3616E-06
        0.390 3.9841E-06
        0.400 2.6864E-06
        0.420 1.3786E-06
        0.440 8.2980E-07
        0.460 5.5636E-07
        0.480 3.9821E-07
        0.500 2.8020E-07
        0.550 1.1980E-07
        0.600 6.7317E-08
        0.650 5.1986E-08
        0.700 3.3523E-08
        0.800 2.5516E-08
        1.060 3.3809E-08
        1.500 4.7842E-08
        2.000 1.1180E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.96e-07 1.14e-08 -3.48e-10 1e-06 9.73e-10 0.275
    nd: 2.00540
    Vd: 27.7
    density:
      - value: 4950
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.6e-06
      - temperature_range: 293 573
        value: 8.5e-06
    dPgF: 0.0064
    resistance:
        climatic: 1.0
        acid: 1.0