Ionization of Xe in intense, two-cycle laser fields: Dependence on carrier-envelope phase [article]

Parinda Vasa, Aditya K. Dharmadhikari, Jayashree A. Dharmadhikari, and Deepak Mathur
2017 arXiv   pre-print
We report on tunnel ionization of Xe by 2-cycle, intense, infrared laser pulses and its dependence on carrier-envelope-phase (CEP). At low values of optical field (E), the ionization yield is maximum for cos-like pulses with the dependence becoming stronger for higher charge states. At higher E-values, the CEP dependence either washes out or flips. A simple phenomenological model is developed that predicts and confirms the observed results. CEP effects are seen to persist for 8-cycle pulses.
more » ... xpectedly, electron rescattering plays an unimportant role in the observed CEP dependence. Our results provide fresh perspectives in ultrafast, strong-field ionization dynamics of multi-electron systems that lie at the core of attosecond science.
arXiv:1706.04805v1 fatcat:a652invbzvfj7odwoez7zw744q