Abstract
Molecular motions in simple liquids are observed on the femtosecond time scale through impulsive simulated scattering. In carbon disulphide and benzene liquids, weakly oscillatory time-dependent responses are observed. These are interpreted in terms of molecular orientational motion which at short times is vibrational (i.e., librational) in character due to intermolecular interactions. In CS2, the dephasing of the oscillations is primarily inhomogeneous. Temperature-dependent values of the configuration-averaged librational frequency and the extent of its inhomogeneity are determined.
Original language | English |
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Pages (from-to) | 470-481 |
Number of pages | 12 |
Journal | IEEE Journal of Quantum Electronics |
Volume | 24 |
Issue number | 2 |
DOIs | |
State | Published - Feb 1988 |
Externally published | Yes |