TY - JOUR
T1 - Controlling the spreading of wave packets of a dissociating molecule
AU - Tiwari, Ashwani Kumar
AU - Møller, Klaus Braagaard
AU - Henriksen, Niels Engholm
PY - 2007
Y1 - 2007
N2 - A first-order perturbation theoretic approach within the electric-dipole approximation is used to study the time evolution of wave packets created by linearly chirped laser pulses on a repulsive potential of Br-2. Our calculations show that negatively chirped pulses focus the wave packet in the Franck-Condon region whereas, as well known, the positively chirped pulses focus the wave packet in the asymptotic region. For the negatively chirped pulses, we show that the time corresponding to the minimum in the width of the wave packet can be predicted by an analytical formula. (C) 2007 Elsevier B.V. All rights reserved.
AB - A first-order perturbation theoretic approach within the electric-dipole approximation is used to study the time evolution of wave packets created by linearly chirped laser pulses on a repulsive potential of Br-2. Our calculations show that negatively chirped pulses focus the wave packet in the Franck-Condon region whereas, as well known, the positively chirped pulses focus the wave packet in the asymptotic region. For the negatively chirped pulses, we show that the time corresponding to the minimum in the width of the wave packet can be predicted by an analytical formula. (C) 2007 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.cplett.2007.10.093
DO - 10.1016/j.cplett.2007.10.093
M3 - Journal article
SN - 0009-2614
VL - 450
SP - 6
EP - 11
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -