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arXiv · 1706.04805

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

Parinda Vasa·Aditya K. Dharmadhikari·Jayashree A. Dharmadhikari·Deepak Mathur
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Abstract

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. Unexpectedly, 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.

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Parinda Vasa, Aditya K. Dharmadhikari, Jayashree A. Dharmadhikari, Deepak Mathur. 2017-06-15. Ionization of Xe in intense, two-cycle laser fields: Dependence on carrier-envelope phase. https://arxiv.org/abs/1706.04805

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