Transient light emission in slow ion-atom collisions

David A. Micha, Keith Runge, Herbert F.M. DaCosta

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We solve for the intensity of light emited by the time-dependent dipole formed in slow ion-atom collisions during electron transfer. We describe the time-evolution of electrons in terms of time-dependent molecular orbitals selfconsistently coupled to the trajectories of the nuclei and apply this approach to H+ + H(1s) collisions at low velocities. Light emission in free-to-free transitions is found to last about 10 fs at a Lab collision energy of 10 eV, and about 3 fs at 100 eV, with bands of wavelengths in the near-UV and visible range.

Original languageEnglish (US)
Pages (from-to)321-326
Number of pages6
JournalChemical Physics Letters
Issue number3
StatePublished - Jun 28 1996

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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