TY - JOUR
T1 - Femtochemistry in the electronic ground state: Dynamic Stark control of vibrational dynamics
AU - Shu, Chuan-Cun
AU - Thomas, Esben Folger
AU - Henriksen, Niels Engholm
PY - 2017
Y1 - 2017
N2 - We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H2 and Cl2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse.
AB - We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H2 and Cl2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse.
KW - Vibrational excitation
KW - Dynamic Stark effect
KW - Pulse shaping
U2 - 10.1016/j.cplett.2017.03.006
DO - 10.1016/j.cplett.2017.03.006
M3 - Journal article
SN - 0009-2614
VL - 683
SP - 234
EP - 239
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -