Channel-resolved subcycle interferences of electron wave packets emitted   from H$_2$ in two-color laser fields
  We report on the observation of subcycle interferences of electron wave packets released during the strong field ionization of H$_2$ with cycle-shaped two-color laser fields. With a reaction microscope, channel-resolved photoelectron momentum distribution are obtained for different final products originating from single ionization of H$_2$. Our results show that the subcycle interference structures of electron wave packet are very sensitive to the cycle-shape of the two-color laser field. The reason is that the ionization time within an optical cycle is determined by the cycle-shape of the laser field. The subcycle interference structures can be further used to get the subcycle dynamics of molecules during strong field interaction. 
Xinhua Xie, Stefan Roither, Daniil Kartashov, Li Zhang, Andrius   Baltu\v{s}ka, Markus Kitzler
physics.chem-ph physics.optics