ISSN:
1432-0649
Keywords:
PACS: 42.65.Dr; 42.65.Re; 33.80.Wz
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. We extend a method proposed by Seidner et al. [J. Chem. Phys. 103, 3998 (1995)] to extract directional terms from a time-dependent molecular polarization to obtain time-resolved four-wave-mixing (FWM) signals. Instead of employing perturbation theory, the total polarization induced in the molecular sample by the interaction with several femtosecond laser pulses is determined by solving the time-dependent Schrödinger equation for the nuclear dynamics in coupled electronic states numerically exact. Repeating the calculation for several combinations of relative phases of the involved fields leads to a linear system of equations for the contributions emitted in different directions. Gas-phase I2 molecules serve as a numerical example.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003400000342
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