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Updated: May 31, 2026
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Study of ultrafast dynamics of 2-picoline by time-resolved photoelectron imaging
Bumaliya Abulimiti1, Rongshu Zhu, Jinyou Long
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, People's Republic of China.
Abstract:
The dynamics of electronically excited states in 2-picoline is studied using femtosecond time-resolved photoelectron imaging spectroscopy. The internal conversion from the S(2) state to the vibrationally excited S(1) state is observed in real time. The secondarily populated high vibronic S(1) state deactivates further to the S(0) state. Photoelectron energy and angular distributions reveal the feature of ionization from the singlet 3p Rydberg states. In addition, variation of time-dependent anisotropy parameters indicates the rotational coherence of the molecule.
