Molecular Double Ionization Using Strong Field Few-Cycle Laser Pulses

作者：Zhao Arthur; Sandor Peter; Tagliamonti Vincent; Matsika Spiridoula; Weinacht Thomas^*

来源：Journal of Physical Chemistry A, 2016, 120(19): 3233-3240.

DOI：10.1021/acs.jpca.5b11713

We study strong field double ionization of a series of organic molecules by making use of coincidence detection of fragment ions. We measure the double ionization yield as a function of pulse duration, intensity, polarization, and molecular conjugation. For conjugated molecules we find strong enhancement in the double ionization rate over what one would expect on the basis of tunneling or multiphoton ionization rates. Calculations reveal a correlation between the electronic structure of the different molecules and the observed double ionization yields, highlighting the removal of electrons from inner orbitals.

• 出版日期2016-5-19