“…The previous analyses of the D 2 O absorption features above 10 000 cm À1 are limited to two recent studies: the most intense 3m 1 + m 3 band was investigated between 10 200 and 10 440 cm À1 by Fourier transform spectroscopy (FTS) with a 105 m path length [1], while the absorption in the 12 570-12 820 cm À1 spectral region, mostly due to the 4m 1 + m 3 band, was recorded by Intracavity Laser Absorption Spectroscopy (ICLAS) with a FTS detection scheme [2].…”