Snow
(Last Updated on June 2020.)
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Refractive index (real part) of water (200-2500nm),
linearly interpolated from original data with a resolution of 5nm:
download matlab file
Original data sources:
Lower range (200-395nm):
Refractive index (real part) of water (200-395nm), calculated from formula from The
International Association for the Properties of Water and Steam (resolution of 5nm)
Release on the Refractive Index of Ordinary Water Substance as a Function of Wavelength,
Temperature and Pressure, The International Association for the Properties of Water and Steam
(IAPWS), Erlangen, Germany, September 1997 (7 pages).
Upper range (400-2500nm):
K.F. Palmer and D. Williams, Optical Properties of water in the near infrared, Journal of the
Optical Society of America, V.64, pp. 1107-1110, August, 1974.
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Extinction coefficient (refractive index, imaginary part) of water (200-2500nm),
linearly interpolated from original data (resolution of 5nm)
download matlab file
Original data sources:
Lower range (200-375nm):
G.M. Hale and M.R. Querry, Optical Constants of Water in the 200-nm to 200-um Wavelength
Region, Applied Optics, Vol. 12, No. 3, pp 555-563, March 1973.
Medium range (380-720nm):
R.M. Pope and E.S. Fry, Absorption spectrum (380-700nm) of pure water. II. Integrating cavity
measurements, Applied Optics, V. 36, N. 33, pp. 8710-8723, November, 1997.
Upper range (725-2500nm):
K.F. Palmer and D. Williams, Optical Properties of water in the near infrared, Journal of the
Optical Society of America, V.64, pp. 1107-1110, August, 1974.
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Refractive index (real part) of ice (200-2500nm), linearly interpolated
from original data (resolution of 5nm)
download matlab file
Original data source:
Stephen G. Warren and Richard E. Brandt, Optical Constants of ice from the ultraviolet
to the microwave: A revised compilation, Journal of Geophysical Research: Atmospheres,
Vol. 113, No. D14, July 2008.
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Refractive index (imaginary part) of ice (200-2500nm), linearly interpolated
from original data (resolution of 5nm)
download matlab file
Original data source:
Stephen G. Warren and Richard E. Brandt, Optical Constants of ice from the ultraviolet
to the microwave: A revised compilation, Journal of Geophysical Research: Atmospheres,
Vol. 113, No. D14, July 2008.
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