Research Area:
- Theoretical Atomic, Molecular & Optical Physics
- We are investigating the interaction of intense femtosecond and attosecond light pulses with atoms and molecules. We have established a quantitative rescattering theory which allows us to extract the structure information on the target from laser-generated high-order harmonics and high-energy photoelectrons. Currently we are extending the method to use ultrashort laser pulses for dynamic chemical imaging with femto- to sub-femtosecond temporal resolutions. We also investigating electron dynamics using attosecond pulses.
Current Research projects:
- Attosecond pulses probing electron dynamics
- Mapping Moelcular orbitals with short intense laser pulses
- Reading Molecular Clock with sub-fs precision
- Quantum chaos in helium atom
In my career, I have carried out research in a number of different subfields in Atomic, Molecular and Optical Physics. They include:
- many-body effect in photoionization of atoms (1970's)
- relativistic many-body perturbation theory (1970's)
- doubly excited states of helium (1970's, 1980's)
- classification of triply excited states of atoms (1990's)
- charge transfer in ion-atom collisions at intermediate energies (1970's to 1990's)
- electron emission in high-energy ion-atom collisions (1990's)
- hyperspherical coordinates for general three-body systems (1980's, 1990's)
- interactions of atoms and molecules with intense lasers (after 2002)
- attosecond physics (after 2004)
- time-resolved chemical imaging with lasers (after 2006)
Research interests:
- Attosecond physics
- Laser-atom and laser-molecule interactions
- Dynamic chemical imaging with infrared lasers
- High-order harmonic generation for molecules
- Quantum chaos in helium atom
