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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