info:eu-repo/semantics/article
State-selective Rydberg excitation with femtosecond pulses
Fecha
2013-04Registro en:
Kozák, M.; Preclíková, J.; Fregenal, Daniel Eduardo; Hansen, J. P.; State-selective Rydberg excitation with femtosecond pulses; American Physical Society; Physical Review A: Atomic, Molecular And Optical Physics; 87; 4-2013; 1-5; 043421
1050-2947
Autor
Kozák, M.
Preclíková, J.
Fregenal, Daniel Eduardo
Hansen, J. P.
Resumen
We show that multipulse excitation of Rydberg atoms with a sequence of short time-delayed femtosecond pulses results in strong n selection of the final-state amplitudes. In the experiment, a 150 fs laser pulse, which alone populates n levels from 22–32 in Li, is chopped into four time-delayed excitation pulses, which results in a strong modification of the n-level distribution. The mechanism demonstrated in the experiment is derived theoretically: With more pulses, it is shown that the population of a single or a few n levels can be performed on demand and varied as long as the central laser frequency is given.