Angular splitting in half Kapitza-Dirac effect of H_2^+ molecules
- Resource Type
- Article
- Authors
- Ren, Xianghe; Zhang, Jingtao; Xu, Zhizhan; Guo, D.-S.
- Source
- Journal of the Optical Society of America B: Optical Physics; April 2010, Vol. 27 Issue: 4 p714-718, 5p
- Subject
- Language
- ISSN
- 07403224; 15208540
The half Kapitza-Dirac effect following photoionization of molecules in intense standing-wave laser fields is studied. Photoelectron angular distributions (PADs) of molecules split towards the laser propagation and exhibit multiple splitting, which manifests the integer property of the ponderomotive parameter, as the laser intensity increases. The PADs are asymmetric about the laser polarization plane and vary with the molecular alignment as well as the kinetic energy of photoelectrons.