Comparison of the Calculated Collision-Induced Absorption Spectra by Dense Hydrogen-Helium, Deuterium-Helium, and Tritium-Helium Gas Mixtures

Figure 3

The collision-induced absorption spectrum of gaseous D₂-He, normalized by the densities of helium and deuterium molecules, at temperatures of 150 K, 600 K, 2000 K, and 9000 K (from bottom to top) for frequencies from 0 to 20,000 cm⁻¹. From left to right, the peaks correspond roughly to the rotational band, the fundamental band, and the first through sixth overtone bands of D₂; from [9].