# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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REFERENCES: |
    K. F. Hulme, O. Jones, P. H. Davies, M. V. Hobden.
    Synthetic proustite (Ag<sub>3</sub>AsS<sub>3</sub>): a new crystal for optical mixing.
    <a href="https://doi.org/10.1063/1.1754880"><i>Appl. Phys. Lett.</i> <b>10</b>, 133-135 (1967)</a>
COMMENTS: |
    Extraordinary ray (e), 20 °C
CONDITIONS:
    temperature: 293
    direction: e
DATA:
  - type: formula 4
    wavelength_range: 0.59 4.6
    coefficients: 6.346 0.342 0 0.09 1 0 0 0 1 -0.0011 2