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REFERENCES: "S. Fang, H. Liu, L. Huang, and N. Ye. Growth and optical properties of nonlinear LuAl<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub> crystals, <a href=\"https://doi.org/10.1364/OE.21.016415\"><i>Optics Express</i> <b>21</b>, 16415-16423 (2013)</a>"
COMMENTS: "25 °C. Ordinary ray (o)."
DATA:
  - type: formula 4
    wavelength_range: 0.266 1.338
    coefficients: 3.11285 0.01834 0 0.01596 1 0 0 0 1 -0.02354 2
