Citation: Yi ZHAO, Guo Zhong HE. THE　THEORY　OF　RESONANT　AND　NONRESONANT　PUMP-PROBE　POLARIZATION SPECTROSCOPY FOR GROUND-STATE COHERENCE[J]. Chinese Chemical Letters, ;1996, 7(4): 353-356. shu

THE　THEORY　OF　RESONANT　AND　NONRESONANT　PUMP-PROBE　POLARIZATION SPECTROSCOPY FOR GROUND-STATE COHERENCE

Yi ZHAO ,
Guo Zhong HE

State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023

Received Date: 14 August 1995

A density matrix treatment of the time evolution of the third order polarization response describing the ground state coherence induced by ultrafast pulses is given.The explicit formulas of polarization response for nonresonant and resonant excitation are derived.The results show that the signal can be greatly enhanced in case of resonance.For specification,we discuss the ground-state rotational coherence based on the irreducible tensor algebra.
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