Seminars Archive

Double photoionization of atoms and molecules

Abstract
Double photoionization, i.e. the process where a photon is absorbed by a system and two electrons are promoted to the continuum, is one of the fundamental processes in atomic and molecular physics because it is dominated by electron-electron correlations both in the target and in the continuum. Moreover due to the complex final state with three charged particles, or even more in the case of molecules, its experimental investigation represents a technological challenge because only time coincidence measurements can provide full characterization of its dynamics. In the seminar the "state of the art" in the electron-electron coincidence studies of double photoionization will be presented together with the discussion of recent results obtained near the double ionization threshold of O2.