Abstract

The values of shift and Lorentz half-width induced by H₂ and self-pressure for the H₂O absorption lines belonging to the v₁ + 3v₃ band are measured. The nonlinear dependence of the shift on H₂ pressure over 500 Torr is registered. To our knowledge this phenomenon has not been observed previously for the same H₂O lines perturbed by atomic (Ne, Ar, Kr, Xe) and molecular (N₂, O₂, air) gases.

© 1992 Optical Society of America

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