Abstract

Theoretical analyses of molecular response to ultrafast pulse excitation often do not account for the influence of high frequency modes on the spectrum of the molecule. In a previous article [M. N. Kobrak, E. M. Hiller, and S. A. Rice, J. Chem. Phys. 105, 9403 (1996)], we have shown that the high frequency modes of the molecule can dramatically change the distribution of an observable in processes initiated by a single ultrashort pulse. In this article we extend our treatment to allow for two-pulse processes, and apply the results to two models which have a qualitative resemblence to bacteriorhodopsin.

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