# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: "1) J. Zhang, Z. H. Lu, and L. J. Wang. Precision refractive index measurements of air, N<sub>2</sub>, O<sub>2</sub>, Ar, and CO<sub>2</sub> with a frequency comb, <a href=\"https://doi.org/10.1364/AO.47.003143\"><i>Appl. Opt.</i> <b>47</b>, 3143-3151 (2008)</a><br>2) P. Křen. Comment on \"Precision refractive index measurements of air, N<sub>2</sub>, O<sub>2</sub>, Ar, and CO<sub>2</sub> with a frequency comb\", <a href=\"https://doi.org/10.1364/AO.50.006484\"><i>Appl. Opt.</i> <b>50</b>, 6484-6485 (2011)</a>"
COMMENTS: "Standard conditions: 20 °C, 101 325 Pa."
DATA:
  - type: formula 6
    wavelength_range: 0.4 1.8
    coefficients: 1.181494e-4 9.708931e-3 75.4
SPECS:
    n_absolute: true
    wavelength_vacuum: true
    temperature: 20 °C
    pressure: 101325 Pa
