# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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REFERENCES: |
    M. P. Fischer, J. Bühler, G. Fitzky, T. Kurihara, S. Eggert, A. Leitenstorfer, D. Brida.
    Coherent field transients below 15 THz from phase-matched difference frequency generation in 4H-SiC.
    <a href="https://doi.org/10.1364/OL.42.002687"><i>Opt. Lett.</i> <b>42</b>, 2687-2690 (2017)</a>
COMMENTS: |
    4H-SiC (hexagonal crystal structure); Extraordinary ray (e); Room temperature.
DATA:
  - type: formula 2
    wavelength_range: 17 150
    coefficients: 6.346 3.026 175.2
CONDITIONS:
    temperature: 293
    direction: e