Above threshold Coulomb explosion is a mechanism recently invoked by Esry et al.  to explain previously unobserved structure in the kinetic energy release (KER) spectrum of intense laser induced ionization of H2+. Based on a diabatic Floquet-Born-Oppenheimer picture, above threshold Coulomb explosion predicts multiple sequences of peaks separated by a photon's energy. This model was able to fit the experimental KER data in  quite well and allowed predictions about the angular distribution that were also verified in . Nevertheless, fundamental questions about the model remain that we will try to address by solving the time-dependent Schroedinger equation. For simplicity, we solve a one-dimensional model for H2+ that should retain the physics of above threshold Coulomb explosion. We will discuss the results of this numerical test.
 B.D.Esry, A.M.Sayler.,P.Q.Wang,K.D.Carnes,and I.Ben-Itzhak, Phys. Rev. Lett. 97,013003(2006)
APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- June 2007