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# refractiveindex.info database is in the public domain
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REFERENCES: |
    G. Beadie, M. Brindza, R. A. Flynn, A. Rosenberg, J. S. Shirk.
    Refractive index measurements of poly(methyl methacrylate) (PMMA) from 0.4-1.6 μm.
    <a href="https://doi.org/10.1364/AO.54.00F139"> <i>Appl. Opt.</i> <b>54</b>, F139-F143 (2015)</a>

COMMENTS: |
    20.1 °C. Absolute accuracy < 2×10<sup>-4</sup>.
CONDITIONS:
    temperature: 293.25
DATA:
  - type: formula 3
    wavelength_range: 0.42 1.62
    coefficients: 2.1778 6.1209e-3 2 -1.5004e-3 4 2.3678e-2 -2 -4.2137e-3 -4 7.3417e-4 -6 -4.5042e-5 -8