NONPERTURBATIVE ANALYTIC APPROACH TO THE INTERACTION OF INTENSE ULTRASHORT CHIRPED PULSES WITH MOLECULES IN SOLUTION - PICTURE OF MOVING POTENTIALS

Authors
Citation
Bd. Fainberg, NONPERTURBATIVE ANALYTIC APPROACH TO THE INTERACTION OF INTENSE ULTRASHORT CHIRPED PULSES WITH MOLECULES IN SOLUTION - PICTURE OF MOVING POTENTIALS, The Journal of chemical physics, 109(11), 1998, pp. 4523-4532
Citations number
59
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
ISSN journal
00219606
Volume
109
Issue
11
Year of publication
1998
Pages
4523 - 4532
Database
ISI
SICI code
0021-9606(1998)109:11<4523:NAATTI>2.0.ZU;2-Q
Abstract
A nonperturbative analytic approach to the problem of the interaction of high-power chirped ultrashort pulses with a molecular system couple d with a dissipative environment has been developed. We considered the model of the Gaussian-Markovian stochastic modulation of the optical transition of a molecule in solution. The calculation results agree qu alitatively with the experimental results by Shank et al. The theory n aturally leads to the picture of ''moving'' potentials which are ''pho tonic replications'' of the ground and excited electronic states. An e lectronic optical transition induced by chirped pulses can be consider ed as an electron transfer reaction between a ''moving photonic replic ation'' and the corresponding term occurring at their instantaneous in tersection. This clear picture explains not only the main features of the behavior of the excited state population as a function of the chir p rate, but fine details of it as well. (C) 1998 American Institute of Physics.