X-ray and Auger electron study of highly charged ions using resonant coherent excitation

We observed X-ray and Auger electron emissions following the three-dimensional resonant coherent excitation (3D-RCE) of highly charged ions in a Si crystal. Using the polarization control technique, the ions were excited to the specific magnetic substates resulting in anisotropic emissions of de-excitation x-rays. The Auger electron emission was also observed through the selective production of doubly excited states by the double resonance technique in 3D-RCE. These methods are quite useful to study the collision dynamics, decay properties, and structure of highly charged ions relevant to atomic processes in plasma. (author)