# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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REFERENCES: |
    G. Hettner and G. Leisegang. Dispersion of the mixed crystals TlBr-TlI (KRS-5) and TlCl-TlBr (KRS-6) in the infrared, <i>Optik</i>, <b>3</b>, 305-314 (1948) [in German], as cited in Handbook of Optics, 3rd edition, Vol. 4. McGraw-Hill 2009 (data fit by Handbook of Optics, corrected by refractiveindex.info)
DATA:
  - type: formula 4
    wavelength_range: 0.6 24
    coefficients: 1 3.821 2 0.02234 2 0 0 0 1 -0.000877 2