Strong-field dynamics of molecules: electron-nuclear correlation (Prof. Jian Wu)
Strong-field dynamics of molecules: electron-nuclear correlation
- Datum: 24.05.2019
- Uhrzeit: 13:00
- Vortragende(r): Prof. Jian Wu
- East China Normal University (ECNU), Shanghai
- Ort: Max Planck Institute of Quantum Optics
- Raum: Herbert Walther Lecture Hall
- Gastgeber: MPQ, Attosecond Physics Division
Here, we experimentally reveal the correlated electron-nuclear dynamics by measuring the electrons and nuclear fragments ejected from a single molecule in coincidence. Our experimental results show that the electron and nuclei in a molecule share the absorbed multiphoton energy in a correlative manner [1,2]. The molecule as a whole absorbs the photon energy. The electron-nuclear energy sharing assisted by the rescattering lead to the observation of long-term predicted photon-energy spaced above threshold dissociation spectrum of breaking molecules , which is the interference of the periodically emitted electron-nuclear wave packet in the oscillating strong laser fields. Interestingly, for molecules in strong laser fields, a liberated electron can be recaptured by the ejected ionic fragments, leading to the formation of the excited Rydberg fragments. We real-time observe and further directionally control the dissociative frustrated double ionization of hydrogen molecules . The frustrated double ionization of molecules can be generally understood in a multiphoton route by considering the correlated dynamics of electrons and nuclei of the molecule .
After the talk, Prof. Guoyue
Shi will present a brief overview of ECNU, its history and main disciplines
as well as the HR policies. He will also discuss opportunities to join ECNU for
PhD studies or as postdoc.