Communication: Two stages of ultrafast hydrogen migration in methanol driven by intense laser fields.
Hydrogen migration in methanol induced by an intense laser field (0.2 PW/cm(2)) is investigated in real time by a pump-probe coincidence momentum imaging method. The observed temporal evolution of the kinetic energy spectra reveals that there are two distinctively different stages in the hydrogen migration processes in the singly charged methanol: ultrafast hydrogen migration occurring within the intense laser field ( approximately 38 fs) and slower postlaser pulse hydrogen migration ( approximately 150 fs).
Xu
Huailiang
H
Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Marceau
Claude
C
Nakai
Katsunori
K
Okino
Tomoya
T
Chin
See-Leang
SL
Yamanouchi
Kaoru
K