TY - JOUR
T1 - Wave-packet dynamics of photodissociation of a linear triatomic molecule under intense nonstationary laser field condition
AU - Sugawara, M.
AU - Fujimura, Y.
N1 - Funding Information:
This workw ass upportedin partb y a Grant-in-Aid for ScientificR esearcho n Priority Area “Theory of ChemicalR eactions’:f rom the Ministry of Education, Sciencea nd Culture,a nd a Grant of thej oint StudiesP rogramo f the GraduateU niversityo f Ad-vancedS tudiesT. he authorst hankP rofessorE . Heller,P rofessorA .D. BandraukP, rofessorH . Kono and Dr. Y. Ohtsukif or their critical commentsT. he authors are gratefult o K. Ohnami for his computa-tionala dvice.
PY - 1993/9/15
Y1 - 1993/9/15
N2 - Vibrational wave-packet dynamics of photodissociation of a linear triatomic BAB-type molecule under intense nonstationary radiation field condition is theoretically studied. We clarify how the wave-packets on the ground and excited adiabatic potential surfaces are coupled with each other through the molecule-laser field interaction. The excited state wave-packet is localized with double maximum structure, and the photodissociation process is suppressed during the intense molecule-radiation field interaction. It is also clarified how oscillatory behavior in intensity signals in femtosecond transition state experiments originates from the wave-packet propagation on the two-dimensional potential surface of the excited state after termination of the pulsed laser. The final momentum distribution of the photodissociation fragments is evaluated, and the fragment formation mechanism is discussed.
AB - Vibrational wave-packet dynamics of photodissociation of a linear triatomic BAB-type molecule under intense nonstationary radiation field condition is theoretically studied. We clarify how the wave-packets on the ground and excited adiabatic potential surfaces are coupled with each other through the molecule-laser field interaction. The excited state wave-packet is localized with double maximum structure, and the photodissociation process is suppressed during the intense molecule-radiation field interaction. It is also clarified how oscillatory behavior in intensity signals in femtosecond transition state experiments originates from the wave-packet propagation on the two-dimensional potential surface of the excited state after termination of the pulsed laser. The final momentum distribution of the photodissociation fragments is evaluated, and the fragment formation mechanism is discussed.
UR - http://www.scopus.com/inward/record.url?scp=21144472326&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=21144472326&partnerID=8YFLogxK
U2 - 10.1016/0301-0104(93)85161-Z
DO - 10.1016/0301-0104(93)85161-Z
M3 - Article
AN - SCOPUS:21144472326
SN - 0301-0104
VL - 175
SP - 323
EP - 336
JO - Chemical Physics
JF - Chemical Physics
IS - 2-3
ER -