# this file is part of refractiveindex.info database
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REFERENCES: "N. Uchida. Optical properties of single-crystal paratellurite (TeO<sub>2</sub>), <a href=\"https://doi.org/10.1103/PhysRevB.4.3736\"><i>Phys. Rev.B</i> <b>4</b>, 3736-3745 (1971)</a>"
COMMENTS: "Extraordinary ray (e)"
DATA:
  - type: formula 1
    range: 0.4 1.0
    coefficients: 0 2.823 0.1342 1.542 0.2631
