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Ciappina, M. F.; Pérez-Hernández, J. A.; Landsman, S.; Zimmermann, T.; Lewensteine, M.; Roso, L.; Krausz, F. (2015): Carrier-wave Rabi flopping signatures in high-order harmonic generation. In: Xxix International Conference On Photonic, Electronic, and Atomic Collisions (Icpeac2015),Pts 1-12, Vol. 635, 092032
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We present theoretical investigations of carrier-wave Rabi flopping (CWRF) in real atoms by studying high-order harmonic generation in alkali species. We concentrate on the features of the third harmonic of Na and K atoms. For pulse areas of 27 and Na atoms, a characteristic unique peak appears, which, after analyzing the ground state population, we correlate it with the conventional Rabi flopping. On the other hand, for larger pulse areas and K atoms, CWRF occurs, and it is associated with a more complex structure in the third harmonic. These new characteristics indicate the breakdown of the area theorem, as was already demonstrated in narrow band gap semiconductors.