Strong Species Dependence of High Order Photoelectron Production in Alkali Metal Atoms

M. B. Gaarde; K. J. Schafer; K. C. Kulander; B. Sheehy; Dalwoo Kim; L. F. DiMauro

doi:10.1103/PhysRevLett.84.2822

Strong Species Dependence of High Order Photoelectron Production in Alkali Metal Atoms

M. B. Gaarde, K. J. Schafer, K. C. Kulander, B. Sheehy, Dalwoo Kim, and L. F. DiMauro

Phys. Rev. Lett. 84, 2822 – Published 27 March 2000

Abstract

We present a theoretical and experimental study of the production of very high order photoelectrons from alkali metal atoms interacting with intense, midinfrared radiation. The strength of this process shows an unexpectedly strong species dependence. We find that this dependence can be explained via the difference in the cross section for electron-ion scattering from the different atoms. This allows us to directly relate the high energy portion of the photoelectron spectrum to specific features of the electron-ion potential.

Received 30 September 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.2822

Authors & Affiliations

M. B. Gaarde¹, K. J. Schafer², K. C. Kulander³, B. Sheehy⁴, Dalwoo Kim^4,5, and L. F. DiMauro⁴

¹Department of Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund, Sweden
²Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001
³TAMP, Lawrence Livermore National Laboratory, Livermore, California 94551
⁴Brookhaven National Laboratory, Upton, New York 11973
⁵Department of Physics, RIST, Pohang, Korea