engleski

Generalization of the Rabi population inversion dynamics in the sub-one-cycle pulse limit

We consider the population inversion in a two-level system generated by sub-one-cycle pulse excitation. Specifically, we explore the effect that the time derivative of the pulse envelope has on the Rabi dynamics. Our analysis is based on a combination of analytical, perturbative and non-perturbative treatments and is complemented by numerical simulations. We find a shortening of the Rabi inversion period and show that complete inversion is unobtainable under resonant, ultrashort pulse condition. The impact of non-resonant and carrier-envelope phase dependent effects on the dynamics of two-level and multi-level systems is studied numerically, and conditions for complete population inversion are derived.

population dynamics

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