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REFERENCES: |
    D. E. Zelmon, S. S. Bayya, J. S. Sanghera, I. D. Aggarwal.
    Dispersion of barium gallogermanate glass.
    <a href="https://doi.org/10.1364/AO.41.001366"><i>Appl. Opt.</i> <b>41</b>, 1366 (2002)</a>
COMMENTS: |
    BaO : Ga<sub>2</sub>O<sub>3</sub> : GeO<sub>2</sub> = 42.9 : 17.0 : 40.1.
DATA:
  - type: formula 2
    wavelength_range: 0.4 5.0
    coefficients: 0 0.82725 0.02978 1.14635 0.005117 1.53923 272.657