Numerical explorations of above threshold Coulomb explosion for H2+ in an intense laser pulse
Abstract
Above threshold Coulomb explosion is a mechanism recently invoked by Esry et al. [1] to explain previously unobserved structure in the kinetic energy release (KER) spectrum of intense laser induced ionization of H2+. Based on a diabatic FloquetBornOppenheimer 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 [1] quite well and allowed predictions about the angular distribution that were also verified in [1]. Nevertheless, fundamental questions about the model remain that we will try to address by solving the timedependent Schroedinger equation. For simplicity, we solve a onedimensional model for H2+ that should retain the physics of above threshold Coulomb explosion. We will discuss the results of this numerical test.
[1] B.D.Esry, A.M.Sayler.,P.Q.Wang,K.D.Carnes,and I.BenItzhak, Phys. Rev. Lett. 97,013003(2006)
 Publication:

APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
 Pub Date:
 June 2007
 Bibcode:
 2007APS..DMP.D1076H