# this file is part of refractiveindex.info database
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REFERENCES: |
    S. Y. Lee, T. Y. Jeong, S. Jung, K. J. Yee.
    Refractive index dispersion of hexagonal boron nitride in the visible and near-infrared.
    <a href="https://doi.org/10.1002/pssb.201800417"><i>Phys. Status Solidi B</i>, <b>256</b>, 1800417 (2018)</a>
COMMENTS: |
    Hexagonal boron nitride (h-BN). In-plane refractive index (ordinary ray, n<sub>o</sub>). h-BN flakes of thickness around 1000 nm were mechanically exfoliated from a bulk crystal and transferred onto quartz substrates for transmission measurements. The single oscillator model is used to fit transmission spectra of several hBN flakes of different thickness.
DATA:
  - type: formula 1
    wavelength_range: 0.45 1.2
    coefficients: 0 3.263 0.1644
CONDITIONS:
    film_thickness: 1e-6
    substrate: SiO2
    direction: o