2015, Hasović, Elvedin, Milošević, Dejan B., Gazibegović-Busuladži, Azra, Čerkić, Aner, Busuladžić, Mustafa

We consider high-order above-threshold ionization (HATI) of polyatomic molecules ionized by a strong linearly polarized laser field. Improved molecular strong-field approximation by which the HATI process on polyatomic molecular species can be described is developed. Using this theory we calculate photoelectron angular-energy spectra for different triatomic molecules. Special attention is devoted to the minima that are observed in the calculated high-energy electron spectra of the ozone and carbon dioxide molecules. A key difference between these minima and minima that are observed in the corresponding spectra of diatomic molecules are presented.

2015, Schulz, Claus Peter, Birkner, Sascha, Furch, Federico J., Anderson, Alexandria, Mikosch, Jochen, Schell, Felix, Vrakking, Marc J. J.

Strong field ionization of small hydrocarbon chains is studied in a kinematic complete experiment using a reaction microscope. By coincidence detection of ions and electrons different ionization continua populated during the ionization process are identified. In addition, photoelectron momentum distributions from laser-aligned molecules allow to characterize the electron wavepackets emerging from different Dyson orbitals.