Definitive data on the absorption spectrum of pure water from 380
to 700 nm have been obtained with an integrating cavity
technique. The results are in good agreement with those recently
obtained by our group with a completely independent photothermal
technique. As before, we find that the absorption in the blue is
significantly lower than had previously been generally believed
and that the absorption minimum is at a significantly shorter
wavelength, i.e., 0.0044±0.0006 m-1 at
418 nm. Several spectroscopic features have been identified
in the visible spectrum to our knowledge for the first time.
R. M. Pope, E. S. Fry, "Absorption spectrum (380-700 nm) of
pure water. II. Integrating cavity measurements," Appl.
Opt.,36, 8710-8723, (1997).