Resonant enhancement of generation of harmonics
Ivanov, Igor; Kheifets, Anatoli
We develop a Floquet based formalism which describes a process of the generation harmonics of in an atom driven by a laser field. Using this formalism, we show that several harmonics are strongly enhanced in the spectrum when the laser frequency is such that a multiphoton resonance occurs between the initial state and a quasienergy state. We illustrate these findings by a numerical calculation of the harmonics generation in the potassium and rubidium atoms driven by a laser in the near-infrared...[Show more]
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|Source:||Physical Review A: Atomic, Molecular and Optical Physics|
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