2008/09/18 by A. V. Korol, A V Korol, A. V. Solov'yov +1
Physics and Astronomy · #Atomic and Molecular Physics #Laser-Matter Interactions and Applications #Laser-Plasma Interactions and Diagnostics #physics.atm-clus #physics.atom-ph
paper · pdf · doi:10.1088/0953-4075/42/1/015002
19 pages, 5 figures, IOP style, submitted to JPB
arxiv created 2008/09/18 · openalex publication_date 2008/12/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We demonstrate that the angular distribution of photoelectrons from a strongly polarizable target exposed to a laser field can deviate noticeably from the prediction of conventional theory. Even within the dipole-photon approximation the profile of distribution is modified due to the action of the field of alternating dipole moment induced at the residue by the laser field. This effect, being quite sensitive to the dynamic polarizability of the residue and to its geometry, depends also on the intensity and frequency of the laser field. Numerical results, presented for sodium cluster anions, demonstrate that dramatic changes to the profile occur for the photon energies in vicinities of the plasmon resonances, where the effect is enhanced due to the increase in the residue polarizability. Strong modifications of the characteristics of a single-photon ionization process can be achieved by applying laser fields of comparatively low intensities I0 ∼1010-1011 W/cm2.