Abstract

The cross-relaxation effects that cause Doppler saturation in a saturated absorption signal were examined for several rotational and vibrational bands in the electronic transition of the iodine molecule. It was found that the cross-relaxation time is of the order of a millisecond and that the effect increases with pressure. It was also found that the effect decreases with an increment in the rotational quantum number of lower level. The mechanism for this effect could be explained by two inelastic rotational-level-changing collisions between molecules populated in the lower state.

© 1987 Optical Society of America

Interferometric studies of nonlinear relaxation processes in vibrationally highly excited SF₆ molecules

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