Measurements of the optical constants of liquid H_2O and D_2O between 6 and 450 cm^−1

Abstract

Various advances in technique have enabled new measurements to be made over a greatly extended frequency range (6<ν∼<450cm−1) of the optical constants n(ν∼) and α(ν∼) of liquid water and liquid D2O at 19°C. The origin of the polarization in this region is discussed.