# 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: "F. Zernike, Jr. Refractive Indices of Ammonium Dihydrogen Phosphate and Potassium Dihydrogen Phosphate between 2000 Å and 1.5 µ, <a href=\"https://doi.org/10.1364/JOSA.54.001215\"><i>J. Opt. Soc. Am.</i> <b>54</b>, 1215-1219 (1964)</a>. Cited in Handbook of Optics, 3rd edition, Vol. 4. McGraw-Hill 2009."
COMMENTS: "24.8 °C. Ordinary ray (o)."
DATA:
  - type: formula 4
    range: 0.2138 1.529
    coefficients: 2.302842 15.102464 2 400 1 0.011125165 0 0.01325366 1
