Vol. 18, issue 09, article # 10

Abstract:

The absorption spectrum of water vapor in the region of 9387-9450 cm^-1 is studied at a temperature of 800 K using an intracavity Nd-laser spectrometer. The high-temperature water vapor spectrum contains more than 150 absorption lines, 54% of which are assigned to 8 vibrational bands: 3n₂ + n₃, 2n₁ + n₂, n₁ + n₂ + n₃, n₂ + 2n₃, 2n₁ + n₃, 3n₃ - n₂, n₁ + 2n₂ + n₃ - n₂, n₁ + 2n₃ - n₂, 2n₁ + n₃ - n₂.