Electron-helium free-free scattering in the presence of a laser field

B. A. DeHarak, L. Ladino, K. B. MacAdam, N. L.S. Martin

Research output: Contribution to journalConference articlepeer-review


We report measurements of the scattering of electrons by helium atoms in the presence of 1.17 eV photons from a Nd:YAG laser. The incident energy of the electrons was in the range 50 - 350 eV and the polarization of the laser was arranged to be parallel to the scattered electrons. Energy-shifted peaks corresponding both to one- and two-photon emission were observed. Calculations using the Kroll-Watson approximation are perfectly consistent with the data.

Original languageEnglish
Article number112004
JournalJournal of Physics: Conference Series
Issue numberPART 11
StatePublished - 2012
Event27th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2011 - Belfast, United Kingdom
Duration: Jul 27 2011Aug 2 2011

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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