Polarization Transfer in the 2p3/2 Photoionization of Magnesium-Like Ions
MA Kun1,2, DONG Chen-Zhong1**, XIE Lu-You1, QU Yi-Zhi3
1Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 2School of Information Engineering, Huangshan University, Huangshan 245041 3College of Material Sciences and Opto-electronic Technology, University of Chinese Academy of Sciences, Beijing 100049
Abstract：The inner-shell 2p3/2 ionization of Mg-like Fe14+, Cd36+, W62+ and U80+ ions by linear polarized light and the subsequent radiative decay are studied theoretically with the multiconfiguration Dirac–Fock (MCDF) method and the density matrix theory. Special attention is paid to exploring the influence of the polarization properties of the incident photon and the non-dipole term which arises from the multipole expansion of the electron-photon interaction on the properties of the subsequent x-ray radiation. The results show that there is a linear relationship between the degree of linear polarization of the radiative decay and ones of the incident light, which can be used for diagnosing the polarization of a light source. In addition, with the increasing photon energies, the non-dipole contribution to the alignment of the residual ions, the degree of linear polarization, as well as the angular distribution of the radiative decay following the inner-shell photoionization will also be increased.
2014, Vol. 31 
