Multiple scattering in laser assisted free-free scattering experiments
POSTER
Abstract
Multiple scattering has been repeatedly invoked\footnote{e.g., Nathan Morrison and Chris H. Greene, Phys. Rev. A 86, 053422 (2012)} as a possible explanation for the theoretical difficulties of describing some of the laser assisted free-free experiments reported by Wallbank, et. al\footnote{e.g., B. Wallbank and J. K. Holmes, Phys. Rev. A 48, R2515 (1993)}. Here, we report on experimental results for electron-helium scattering in the presence of an Nd:YAG laser field of 1.17 eV photons where target number densities are varied so that multiple scattering occurs. We compare our results with simple monte carlo simulations that make use of Kroll-Watson approximation~\footnote{N. M. Kroll and K. M. Watson, Phys. Rev. A 8, 804 (1973)} calculations.
*This work was supported by the National Science Foundation under grants~Nos.~PHY-0855040 (NLSM) and PHY-1402899 (BAd)