TY - JOUR
T1 - Following dynamic nuclear wave packets in N2,O2, and CO with few-cycle infrared pulses
AU - De, S.
AU - Magrakvelidze, M.
AU - Bocharova, I. A.
AU - Ray, D.
AU - Cao, W.
AU - Znakovskaya, I.
AU - Li, H.
AU - Wang, Z.
AU - Laurent, G.
AU - Thumm, U.
AU - Kling, M. F.
AU - Litvinyuk, I. V.
AU - Ben-Itzhak, I.
AU - Cocke, C. L.
PY - 2011/10/10
Y1 - 2011/10/10
N2 - We study the evolution of nuclear wave packets launched in molecular nitrogen, oxygen, and carbon monoxide by intense 8-fs infrared pulses. We use velocity map imaging to measure the momentum of the ion fragments when these wave packets are interrogated by a second such pulse after a variable time delay. Both quasibound and dissociative wave packets are observed. For the former, measurements of bound-state oscillations are used to identify the participating states and, in some cases, extract properties of the relevant potential-energy surfaces. Vibrational structure is resolved in both energy and oscillation frequencies for the cations of oxygen and carbon monoxide, displaying the same quantum wave-packet motion in both energy and time domains. In addition, vibrational structure is seen in the dication of carbon monoxide in a situation where the energy resolution by itself is inadequate to resolve the structure.
AB - We study the evolution of nuclear wave packets launched in molecular nitrogen, oxygen, and carbon monoxide by intense 8-fs infrared pulses. We use velocity map imaging to measure the momentum of the ion fragments when these wave packets are interrogated by a second such pulse after a variable time delay. Both quasibound and dissociative wave packets are observed. For the former, measurements of bound-state oscillations are used to identify the participating states and, in some cases, extract properties of the relevant potential-energy surfaces. Vibrational structure is resolved in both energy and oscillation frequencies for the cations of oxygen and carbon monoxide, displaying the same quantum wave-packet motion in both energy and time domains. In addition, vibrational structure is seen in the dication of carbon monoxide in a situation where the energy resolution by itself is inadequate to resolve the structure.
UR - https://www.scopus.com/pages/publications/80054004099
U2 - 10.1103/PhysRevA.84.043410
DO - 10.1103/PhysRevA.84.043410
M3 - 文章
AN - SCOPUS:80054004099
SN - 1050-2947
VL - 84
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 043410
ER -