Index of refraction:

See the following links for the absorption coefficients

This is a complement to Fig. 7.9 of Jackson

http://omlc.ogi.edu/spectra/water/gif/segelstein81.gif for the broad wavelength region

http://omlc.ogi.edu/spectra/water/gif/hale73.gif narrower wavelength region

http://omlc.ogi.edu/spectra/water/gif/wieliczka89.gif to see the structures due to energy leves of water molecules