Large-angle electron diffraction structure in laser-induced rescattering from rare gases

D. Ray, I. Bocharova, C. Maharjan, P. Ranitovic, B. Gramkow, M. Magrakvelidze, S. De, I.V. Litvinyuk, A.T. Le, C.D. Lin, C.L. Cocke
James R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS, USA

B. Ulrich
Institut für Kernphysik, University Frankfurt, Frankfurt Germany

T. Morishita
Dept. of Applied Physics and Chemistry, The University of Electro-communications, Tokyo Japan

G.G. Paulus
Institute of Optics and Quantum Electronics, Jena, Germany

We have measured full momentum images of electron rescatterred from Xe, Kr and Ar following the liberation of the electrons from these atoms by short, intense laser pulse. Structural study of transient target atoms (or molecules) can be done by focusing on the high energy backscattered electrons in such laser-matter interactions. Recent theoretical developments show that full solutions to time-dependant Schrodinger equation including rescatttering allow the identification of specific "back rescattering ridges" (BRR) along which the angular structure of the differential cross section is clearly visible and very target dependant. We have experimentally observed these predicted features in the momentum images.

This work was supported by the Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy, and by the National Science Foundation.

Presented at DAMOP, May 2008, in State College, PA.

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